Vomiting

Vomiting Symptoms & Signs

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Symptoms & Signs

Vomiting, along with nausea, is a symptom of an underlying disease rather than a specific illness itself. Emesis is the medical term for vomiting. Vomiting is the forcible emptying of the stomach in which the stomach has to overcome the pressures that are normally in place to keep food and secretions within the stomach. Causes of vomiting are varied and include food-borne illnesses (food poisoning), infections, problems with the brain and central nervous system, and systemic (body-wide) diseases. Some illnesses will cause nausea and vomiting, even though there is no direct involvement of the stomach or gastrointestinal tract. Examples can include pneumonia, heart attack, and sepsis. Vomiting may be a side effect of medications, including drugs used in cancer chemotherapy, as well as a side effect of radiation therapy.

Medically Reviewed by a Doctor on 3/27/2015

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REFERENCE:

Longo, D.L., et al. Harrison's Principles of Internal Medicine, 18th ed. United States: McGraw-Hill Professional, 2011.

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      • What about a head injury in infants and young children?
    • Heart Attack Heart attack happens when a blood clot completely obstructs a coronary artery supplying blood to the heart muscle. A heart attack...learn more »
      In This Article
      Heart Attack Article
      • Heart attack facts
      • What is a heart attack?
      • What causes a heart attack?
      • What are the symptoms of a heart attack?
      • What are the complications of a heart attack?
      • What are the risk factors for atherosclerosis and heart attack?
      • How is a heart attack diagnosed?
      • What is the treatment for heart attack?
      • What are the risk factors for heart attack in women?
      • What are the symptoms of heart attack in women and how is heart attack diagnosed?
      • How is heart attack in women treated?
      • What about hormone therapy and heart attack in women?
      • What is new in heart attack?
    • Heart Attack Treatment A heart attack involves damage or death of part of the heart muscle due to a blood clot. The aim of heart attack treatment is to...learn more »
      In This Article
      Heart Attack Treatment Article
      • What is a heart attack?
      • How is a heart attack treated?
      • Antiplatelet agents
      • Aspirin
      • Thienopyridines
      • Glycoprotein IIb/IIIa inhibitors
      • Anticoagulants
      • Clot-dissolving drugs
      • Coronary angiography and percutaneous transluminal coronary angioplasty (PTCA)
      • Coronary artery stents
      • Nitrates
      • Angiotensin converting enzyme (ACE) inhibitors
      • Beta blockers
      • Oxygen
      • Coronary artery bypass
      • What can a patient expect during recovery from a heart attack?
      • How can a second heart attack be prevented?
    • Heat-Related Illness Hyperthermia is the overheating of the body. Heat-related illnesses like heat stroke, heat exhaustion, heat cramps, heat rash,...learn more »
      In This Article
      Heat-Related Illness Article
      • Heat-related illness facts
      • What is a heat-related illness?
      • What causes a heat-related illness?
      • Who is at risk of heat-related illness?
      • What are the symptoms of heat-related illness?
      • Heat stroke
      • Heat exhaustion
      • Heat cramps
      • Heat syncope (fainting)
      • Heat rash
      • Heat-related illness prevention
    • Helicobacter Pylori (H. pylori) Helicobacter pylori (H. pylori) is a bacteria that causes chronic inflammation (gastritis) of the inner lining of the stomach,...learn more »
    • Hepatitis B (HBV, Hep B) The hepatitis B virus (HBV, hep B) is a unique, coated DNA virus belonging to the Hepadnaviridae family of viruses. The course of...learn more »
      In This Article
      Hepatitis B (HBV, Hep B) Article
      • Hepatitis B facts
      • What is hepatitis?
      • How is the hepatitis B virus spread (transmitted)?
      • What are the symptoms of acute hepatitis B?
      • What are the symptoms of chronic hepatitis B?
      • How is hepatitis B diagnosed?
      • What is the role of a liver biopsy in chronic hepatitis B?
      • What is the natural course of chronic hepatitis B?
      • What medications are used to treat hepatitis B?
      • What are the effects of alcohol on hepatitis B?
      • What are the effects of immunosuppressive medications on hepatitis B?
      • What is delta hepatitis?
      • What about co-infection with hepatitis B virus and hepatitis C virus?
      • What happens in co-infection with hepatitis B virus and HIV?
      • What is the role of liver transplantation in hepatitis B?
      • What can be done to prevent hepatitis B?
      • What is new in the treatment of hepatitis B?
    • Hepatitis C (HCV, Hep C) Hepatitis C is an inflammation of the liver due to the hepatitis C virus (HCV), which is usually spread by blood transfusion,...learn more »
      In This Article
      Hepatitis C (HCV, Hep C) Article
      • Hepatitis C infection (HCV) facts
      • What is hepatitis C infection, and how many people are infected?
      • What is the hepatitis C virus?
      • What are the symptoms of hepatitis C infection?
      • What is the contagious period for hepatitis C?
      • What is the incubation period for hepatitis C?
      • How long does it take for symptoms to appear after contracting hepatitis C?
      • How is hepatitis C spread?
      • Can hepatitis C infection affect other organs besides the liver?
      • Who is at high risk and should be tested for hepatitis C infection?
      • What type of doctor treats hepatitis C?
      • How is hepatitis C diagnosed?
      • Liver biopsy and non-invasive tests for hepatitis C
      • What medications cure hepatitis C infection?
      • What are the treatment guidelines for hepatitis C?
      • What is the treatment for people with acute hepatitis C infection?
      • What are the side effects of treatments for hepatitis C infection?
      • What about liver transplantation for a person with hepatitis C?
      • How is monitoring done after treatment for hepatitis C?
      • What home remedies are available for hepatitis C?
      • What are the complications of undiagnosed hepatitis C?
      • Can hepatitis C be prevented?
      • What is the prognosis of hepatitis C?
      • What is the current research and what is in the future for hepatitis C?
    • Hernia A hernia occurs when an organ or piece of tissue protrudes from the space in which it is normally contained. Symptoms of a hernia...learn more »
      In This Article
      Hernia Article
      • What is an abdominal hernia?
      • What are the different types of abdominal hernias?
      • What causes an abdominal hernia?
      • What are the signs and symptoms of an abdominal hernia?
      • How are abdominal hernias diagnosed?
      • What is the treatment for an abdominal hernia?
      • What non-surgical treatments are available for an abdominal hernia?
      • What is the prognosis for an abdominal hernia?
      • Can an abdominal hernia be prevented?
    • How Long Is a Cold or Flu Contagious? Viruses cause the common cold and the flu. Early symptoms and signs for a cold and the flu are similar, however, flu symptoms are...learn more »
      In This Article
      How Long Is a Cold or Flu Contagious? Article
      • How long is a cold or flu contagious?
      • How will I know if I have a cold or the flu?
      • How do cold and flu viruses spread?
      • How will I know if I am cured of the flu or a cold?
      • When should someone seek medical care for a cold or the flu?
    • Hypertensive Kidney Disease High blood pressure can damage the kidneys and is one of the leading causes of kidney failure (end-stage renal kidney disease)....learn more »
      In This Article
      Hypertensive Kidney Disease Article
      • High blood pressure and kidney disease facts*
      • Introduction to high blood pressure (hypertension) and kidney disease
      • What is high blood pressure?
      • How does high blood pressure hurt the kidneys?
      • What are the signs and symptoms of high blood pressure?
      • What are the signs and symptoms of chronic kidney disease? (CKD)?
      • How can kidney damage from high blood pressure be prevented?
      • How can high blood pressure be controlled?
      • Can medicines help control blood pressure?
      • Who is at risk for kidney failure related to high blood pressure?
      • Hope Through Research
    • Intussusception Intussusception is the telescoping (prolapse) of a portion of the intestine within another immediately adjacent portion of...learn more »
      In This Article
      Intussusception Article
      • Intussusception facts
      • What is intussusception?
      • What happens during intussusception?
      • Is intussusception an urgent problem?
      • Who is at greatest risk for intussusception?
      • What causes intussusception?
      • Why is rapid diagnosis of intussusception important?
      • What are the symptoms of intussusception?
      • How is intussusception diagnosed?
      • Is it necessary to operate when there is intussusception?
      • What is the prognosis (outlook) for patients with intussusception?
    • Is Cholera Contagious? Cholera is an infectious disease caused by the bacteria Vibrio cholerae. It's typically transmitted via infected fecal matter....learn more »
      In This Article
      Is Cholera Contagious? Article
      • What is cholera?
      • Is cholera contagious?
      • What is the incubation period for cholera?
      • How is cholera spread?
      • When does the contagious period for cholera end?
      • When should someone seek medical care for cholera?
    • Is Crohn's Disease Contagious? Crohn's disease, a form of inflammatory bowel disease, is characterized by symptoms and signs that include diarrhea, fever,...learn more »
      In This Article
      Is Crohn's Disease Contagious? Article
      • What is Crohn's disease?
      • Is Crohn's disease contagious?
      • How do I know when someone has Crohn's disease?
      • How does Crohn's disease spread?
      • How will I know when someone is cured of Crohn's disease?
      • When should I contact a medical caregiver about Crohn's disease?
    • Is H. pylori Contagious? H. pylori or Helicobacter pylori infection is spread from person to person by fecal contamination in either food or water that is...learn more »
      In This Article
      Is H. pylori Contagious? Article
      • What is H. pylori?
      • Is H. pylori contagious?
      • How long before I know I am infected with H. pylori?
      • What are the symptoms of H. pylori?
      • How are H. pylori bacteria spread?
      • When should I seek medical care for an H. pylori infection?
      • Are there home remedies or cures for H. pylori infection?
      • How will I know if or others or I are no longer contagious for H. pylori?
    • Is Malaria Contagious? Malaria is transmitted via the bite of an infected mosquito. The incubation period for malaria depends upon the species of...learn more »
      In This Article
      Is Malaria Contagious? Article
      • What is malaria?
      • Is malaria contagious?
      • What is the incubation period for malaria?
      • How is malaria transmitted?
      • How long does it take to be cured of malaria?
      • When should people seek medical care for a suspected malaria infection?
    • Is Meningitis Contagious? Meningitis, inflammation of the meninges, symptoms and signs include neck stiffness, headache, and fever. There are five types of...learn more »
      In This Article
      Is Meningitis Contagious? Article
      • What is meningitis?
      • Is meningitis contagious?
      • What is the incubation period for meningitis?
      • How is meningitis transmitted?
      • How long does meningitis last?
      • When should someone seek medical care for meningitis?
    • Is Norovirus Contagious? Noroviruses cause food poisoning symptoms (vomiting, nausea, and diarrhea) in infected individuals. Norovirus is transmitted via...learn more »
      In This Article
      Is Norovirus Contagious? Article
      • What is norovirus?
      • Is norovirus contagious?
      • What is the contagious period for norovirus?
      • How will I know if I have norovirus?
      • How is norovirus transmitted?
      • How will I know I am cured of norovirus?
      • When should I contact a medical caregiver about norovirus?
    • Is Pneumonia Contagious? Pneumonia is inflammation of the lung usually caused by bacterial or viral infection (rarely, also by fungi) that causes the air...learn more »
      In This Article
      Is Pneumonia Contagious? Article
      • What is pneumonia?
      • Is pneumonia contagious?
      • When is pneumonia contagious?
      • What is the incubation period for pneumonia?
      • Can pneumonia spread?
      • How long is pneumonia contagious?
      • When should someone seek medical care for pneumonia?
    • Is Scarlet Fever Contagious? Group A strep bacteria cause scarlet fever. Scarlet fever is transmitted via person-to-person contact and by coming in contact...learn more »
      In This Article
      Is Scarlet Fever Contagious? Article
      • What is scarlet fever?
      • Is scarlet fever contagious?
      • How will I know if I have scarlet fever?
      • How is scarlet fever transmitted?
      • When will I know I am cured of scarlet fever?
      • When should I contact a physician about scarlet fever?
    • Is Swine Flu (H1N1) Contagious? Swine flu (H1N1) is a contagious virus that spreads when an infected individual expels virus-containing droplets into the air...learn more »
      In This Article
      Is Swine Flu (H1N1) Contagious? Article
      • What is swine flu?
      • Is swine flu (H1N1) contagious?
      • What is the contagious period for swine flu (H1N1)?
      • How will I know if I have swine flu?
      • How is swine flu transmitted?
      • How will I know if I am cured of swine flu?
      • When should I contact medical caregiver about swine flu (H1N1)?
    • Is the Ebola Virus Contagious? Ebola hemorrhagic fever is a highly contagious disease that is transmitted through direct contact. Ebola's incubation period...learn more »
      In This Article
      Is the Ebola Virus Contagious? Article
      • What is Ebola?
      • Is Ebola contagious?
      • What is the incubation period for the Ebola virus?
      • How will I know if someone is infected with Ebola?
      • How is the Ebola virus transmitted?
      • How will I know if someone is cured of Ebola? What is the contagious period for Ebola?
      • When should I contact a medical caregiver about Ebola?
    • Is the Stomach Flu (Gastroenteritis) Contagious? The stomach flu (gastroenteritis) refers to variety infections that occur in the GI (gastrointestinal tract). The stomach flu is...learn more »
      In This Article
      Is the Stomach Flu (Gastroenteritis) Contagious? Article
      • What is the stomach flu?
      • Is the stomach flu contagious?
      • How will I know if I have the stomach flu?
      • How is stomach flu spread?
      • When will I know I'm cured of the stomach flu?
      • When should I contact a health-care professional about the stomach flu?
    • Is Whooping Cough (Pertussis) Contagious? Whooping cough (pertussis) is a highly contagious respiratory infection caused by Bordetella pertussis. Pertussis is...learn more »
      In This Article
      Is Whooping Cough (Pertussis) Contagious? Article
      • What is whooping cough (pertussis)?
      • Is whooping cough contagious?
      • How will I know if someone has whooping cough? What are the various stages of pertussis?
      • How is whooping cough transmitted? What is the incubation period for pertussis? What is the contagious period for pertussis?
      • When will I know someone is cured of whooping cough?
      • When should I contact a medical caregiver about whooping cough?
    • Kidney Infection (Pyelonephritis) Kidney infection (pyelonephritis) usually is caused from bacteria that have spread from the bladder from a UTI (urinary tract...learn more »
    • Kidney Pain Kidney pain has a variety of causes and symptoms. Infection, injury, trauma, bleeding disorders, and less common conditions may...learn more »
    • Kidney Stones Kidney stones are solid masses of crystalline material that form in the kidneys. Symptoms of kidney stones can include pain,...learn more »
    • Lassa Fever Lassa fever is a viral hemorrhagic fever that causes flu-like symptoms. Ribavirin is the standard treatment for Lassa fever....learn more »
      In This Article
      Lassa Fever Article
      • Lassa fever facts
      • What is Lassa fever?
      • What is the history of Lassa fever?
      • What are causes and risk factors for Lassa fever?
      • Is Lassa fever contagious? If so, what is the contagious period for Lassa fever?
      • When is Lassa fever no longer contagious?
      • What is the incubation period for Lassa fever?
      • What are Lassa fever symptoms and signs?
      • How do physicians diagnose Lassa fever?
      • What is the treatment for Lassa fever?
      • What are complications for Lassa fever?
      • What is the prognosis of Lassa fever?
      • Is it possible to prevent Lassa fever? Is there a vaccine for Lassa fever?
      • What research is being done on Lassa fever?
      • Where can people find more information on Lassa fever?
    • Listeria Listeria is a type of bacteria that can cause food poisoning. Listeriosis symptoms include diarrhea, nausea and fever. Pregnant...learn more »
      In This Article
      Listeria Article
      • Listeriosis (Listeria monocytogenes infection) facts
      • What is listeriosis? What causes listeriosis?
      • What are listeriosis symptoms and signs?
      • What are the risk factors for listeriosis?
      • How is listeriosis diagnosed?
      • What is the treatment for listeriosis?
      • How does a person get listeriosis?
      • Can listeriosis be prevented?
      • What is the prognosis (outcome) for Listeria infections?
      • If a person has eaten recalled food potentially contaminated with Listeria, what should he or she do?
      • What is the government doing about listeriosis?
    • Malaria Malaria is a disease that is spread by the bite of an infected Anopheles mosquito. Malaria symptoms include fever, chills,...learn more »
      In This Article
      Malaria Article
      • Malaria facts
      • What is malaria?
      • Is malaria contagious?
      • What causes malaria?
      • What are risk factors for malaria? Is it possible to prevent malaria?
      • What are malaria symptoms and signs?
      • How do physicians diagnose malaria?
      • What is the treatment for malaria?
      • What is the prognosis of malaria?
      • Is there a malaria vaccine?
      • Can malaria reoccur after treatment?
    • Marburg Virus Disease Marburg virus disease is a zoonotic infection that produces symptoms such as chills, headaches, fever, and muscle aches. The...learn more »
      In This Article
      Marburg Virus Disease Article
      • Marburg virus disease facts
      • What is Marburg virus disease?
      • What causes Marburg disease?
      • What are the symptoms and signs of Marburg infection? What is the incubation period for a Marburg virus infection?
      • What are risk factors for getting Marburg infections?
      • How do health-care professionals diagnose Marburg viral infections?
      • What treatment is available for Marburg virus infections?
      • What specialists treat Marburg infections?
      • Is it possible to prevent Marburg virus infections?
      • What is the prognosis for a Marburg virus infection? What complications may occur with Marburg infections?
      • What research is ongoing about Marburg virus infections?
      • Why is Africa now seeing so many cases of what were relatively rare viral diseases like Ebola and Marburg virus infections?
    • Meniere Disease Meniere disease (idiopathic endolymphatic hydrops) is an inner ear disorder with symptoms that include vertigo, tinnitus, hearing...learn more »
      In This Article
      Meniere Disease Article
      • Meniere's disease facts
      • What is Meniere's disease?
      • What causes Meniere's disease?
      • What are the symptoms of Meniere's disease?
      • How is Meniere's disease diagnosed?
      • How can Meniere's disease be treated?
    • Meningitis Encephalitis is a brain inflammation that causes sudden fever, vomiting, headache, light sensitivity, stiff neck and back,...learn more »
      In This Article
      Meningitis Article
      • Encephalitis and meningitis facts
      • What is encephalitis?
      • What causes encephalitis?
      • What are encephalitis symptoms and signs?
      • Is encephalitis contagious?
      • Is it possible to prevent encephalitis? Is there an encphalitis vaccine?
      • What is meningitis?
      • What causes meningitis?
      • What are meningitis symptoms and signs?
      • What is encephalomyelitis?
      • How are encephalitis and meningitis diagnosed?
      • What is the treatment of encephalitis and meningitis?
      • What is the prognosis (outlook), and what are the complications for patients with encephalitis or meningitis?
      • Is meningitis contagious?
      • Is it possible to prevent meningitis? Is there a meningitis vaccine?
    • Migraine Headache Migraine headaches are severe headaches that are accompanies to sensitivity to light, sounds, and smells. They are often...learn more »
      In This Article
      Migraine Headache Article
      • Migraine headache facts
      • What is a migraine?
      • What are migraine triggers?
      • What causes migraines?
      • What are the risk factors for migraine?
      • What are the signs and symptoms of migraines?
      • How are migraines diagnosed?
      • What is the treatment for migraines?
      • Migraine medications
      • What self-care treatment and lifestyle changes work for migraines?
      • How are migraines managed during pregnancy?
      • How are migraines managed in children?
      • What is the prognosis for migraines?
      • Can migraines be prevented?
    • Motion Sickness Motion sickness is a feeling of unwellness caused by the inner ear and balance systems. Motion sickness can include sea sickness,...learn more »
      In This Article
      Motion Sickness Article
      • What is motion sickness?
      • Who is at risk for motion sickness?
      • What are causes of motion sickness?
      • What are the signs and symptoms of motion sickness?
      • When should I call a doctor for motion sickness?
      • How is motion sickness diagnosed?
      • What is the treatment for motion sickness?
      • Home remedies for motion sickness
      • OTC and prescription medication for motion sickness
      • Can motion sickness be prevented?
    • Munchausen Syndrome by Proxy (MSBP) Munchausen syndrome by proxy (MSBP) is a mental illness (factitious disorder) in which a caregiver secretly abuses a child by...learn more »
      In This Article
      Munchausen Syndrome by Proxy (MSBP) Article
      • Munchausen syndrome by proxy facts
      • What is Munchausen syndrome by proxy?
      • What are Munchausen syndrome by proxy causes and risk factors?
      • What are Munchausen syndrome by proxy symptoms and signs?
      • How is Munchausen syndrome by proxy diagnosed?
      • What is the treatment for Munchausen syndrome by proxy?
      • What are the complications of Munchausen syndrome by proxy?
      • Where can one get more information on Munchausen syndrome by proxy?
    • Norovirus Infection Norovirus infection causes stomach flu, or gastroenteritis. It's a very contagious illness with symptoms that include nausea and...learn more »
    • Pancreatitis Pancreatitis is a rare disease in which the pancreas becomes inflamed. There are two types of pancreatitis, acute and chronic....learn more »
    • Peanut Allergy About 1% to 2% of people in the U.S. have a peanut allergy. Symptoms and signs of a peanut allergy include rash, hives, redness,...learn more »
      In This Article
      Peanut Allergy Article
      • Peanut allergy facts
      • What is a peanut allergy?
      • How common is a peanut allergy?
      • Why is peanut allergy increasing and what are risk factors for a peanut allergy?
      • What are peanut allergy symptoms and signs? How do physicians diagnose a peanut allergy?
      • How are peanut allergies managed? What is the treatment for a peanut allergy?
      • Can a peanut allergy be cured or outgrown?
    • Peritonitis Peritonitis is a bacterial infection inside of the abdomen. Some doctors choose to group the causes of peritonitis into five...learn more »
      In This Article
      Peritonitis Article
      • Peritonitis facts
      • What is peritonitis?
      • What are the signs and symptoms of peritonitis?
      • What are the causes of peritonitis?
      • What is the most common type of peritonitis?
      • What kind of doctor treats peritonitis?
      • How is peritonitis diagnosed?
      • What is the treatment for peritonitis?
      • What are the complications of peritonitis?
      • Can peritonitis be prevented?
      • What is the prognosis for a person with peritonitis?
    • Pneumonia Pneumonia is inflammation of the lungs caused by fungi, bacteria, or viruses. Symptoms and signs include cough, fever, shortness...learn more »
    • Porphyria Porphyria is a group of disorders that affect the nervous system, skin, or both. Porphyria is often an inherited condition that...learn more »
      In This Article
      Porphyria Article
      • Porphyria facts*
      • What is porphyria?
      • What are the types of porphyria?
      • What causes porphyria?
      • What are the symptoms of porphyria?
      • How is porphyria diagnosed?
      • How is porphyria treated?
    • Reye's Syndrome Reye's syndrome (RS or Reye syndrome) is a sudden, sometimes fatal, disease of the brain with degeneration of the liver. Reye...learn more »
      In This Article
      Reye's Syndrome Article
      • Reye's syndrome facts
      • What is Reye's syndrome?
      • What causes Reye's syndrome?
      • What are risk factors for Reye's syndrome?
      • What are Reye's syndrome symptoms and signs?
      • How do health-care professionals diagnose Reye's syndrome?
      • What is the treatment for Reye's syndrome?
      • What is the prognosis for Reye's syndrome?
      • Is it possible to prevent Reye's syndrome?
      • What research is being done on Reye's syndrome?
      • Where can I find more information about Reye's syndrome?
    • Rocky Mountain Spotted Fever (RMSF) Rocky Mountain spotted fever is a tick-borne disease that causes symptoms and signs such as fever, rash, headache, and muscle...learn more »
      In This Article
      Rocky Mountain Spotted Fever (RMSF) Article
      • Rocky Mountain spotted fever facts
      • What is Rocky Mountain spotted fever?
      • Where do most cases of RMSF occur in the U.S.?
      • What causes Rocky Mountain spotted fever?
      • How is Rocky Mountain spotted fever transmitted?
      • What are Rocky Mountain spotted fever risk factors?
      • Is Rocky Mountain spotted fever contagious?
      • What are Rocky Mountain spotted fever symptoms and signs?
      • What is the incubation period for Rocky Mountain spotted fever?
      • How do health-care providers diagnose Rocky Mountain spotted fever?
      • What is the treatment for Rocky Mountain spotted fever?
      • What is the prognosis of Rocky Mountain spotted fever?
      • What are the long-term effects of Rocky Mountain spotted fever?
      • Is there a vaccine for Rocky Mountain spotted fever?
      • Is it possible to prevent Rocky Mountain spotted fever?
    • Rotavirus Rotavirus is the most common cause of severe diarrhea among infants and children throughout the world. Almost all children have...learn more »
      In This Article
      Rotavirus Article
      • Rotavirus infection facts
      • What is rotavirus?
      • What causes rotavirus infection?
      • What are risk factors for rotavirus infection?
      • Can adults get a rotavirus infection?
      • What is the incubation period for rotavirus?
      • What are rotavirus symptoms and signs?
      • Is rotavirus contagious? How long is rotavirus contagious?
      • How is rotavirus transmitted?
      • How is rotavirus diagnosed?
      • What is the treatment for a rotavirus infection?
      • What is the prognosis of rotavirus infection?
      • Can rotavirus infection be prevented with a vaccine? Are any side effects associated with the rotavirus vaccine?
    • Salmonella Salmonella infection (salmonellosis) is typically caused by the consumption of contaminated foods. Symptoms of salmonellosis...learn more »
      In This Article
      Salmonella Article
      • Salmonella food poisoning facts
      • What is Salmonella food poisoning?
      • What causes Salmonella outbreaks? How does Salmonella spread?
      • What are risk factors for Salmonella food poisoning?
      • What are symptoms and signs of Salmonella poisoning?
      • Is Salmonella contagious?
      • What is the incubation period for a Salmonella infection?
      • What is the contagious period for salmonellosis?
      • What kinds of doctors treat Salmonella food poisoning?
      • How do physicians diagnose Salmonella food poisoning?
      • What is the treatment for Salmonella food poisoning?
      • What are complications of Salmonella food poisoning?
      • What is the prognosis of Salmonella food poisoning?
      • Is it possible to prevent Salmonella food poisoning?
    • Scarlet Fever (Scarlatina) Scarlet fever, a bacterial infection caused by group A Streptococcus bacteria, causes symptoms and signs such as fever, rash with...learn more »
      In This Article
      Scarlet Fever (Scarlatina) Article
      • Scarlet fever facts
      • What is scarlet fever?
      • What causes scarlet fever?
      • What is the incubation period for scarlet fever?
      • What are risk factors for scarlet fever?
      • What is the contagious period for scarlet fever?
      • What are scarlet fever symptoms and signs?
      • How do physicians diagnose scarlet fever?
      • What is the treatment for scarlet fever?
      • What are complications of scarlet fever?
      • What is the prognosis of scarlet fever? What are the long-term effects of scarlet fever?
      • Is it possible to prevent scarlet fever? Is there a scarlet fever vaccine?
    • Sepsis Sepsis (blood poisoning) is a potentially deadly infection with signs and symptoms that include elevated heart rate, low or high...learn more »
      In This Article
      Sepsis Article
      • Sepsis (blood poisoning) facts
      • What is blood poisoning?
      • What is sepsis?
      • Why are there so many diseases with "sepsis," "septic," "septicemia," or "blood poisoning" in their name?
      • What causes sepsis?
      • What are the risk factors for sepsis?
      • What are sepsis (blood poisoning) symptoms and signs?
      • How do health-care professionals diagnose sepsis?
      • What is the treatment for sepsis?
      • What types of specialists treat sepsis?
      • What is the prognosis with sepsis?
      • What are the complications of sepsis?
      • Is it possible to prevent sepsis (blood poisoning)?
      • What are some additional sources for information on sepsis (blood poisoning)?
    • Shigella Shigellosis is a disease caused by the Shigella bacteria. Bloody diarrhea, stomach cramps and fever are common symptoms. Mild...learn more »
      In This Article
      Shigella Article
      • Shingellosis facts*
      • What is shigellosis? What causes shigellosis?
      • What sort of germ is Shigella?
      • How can Shigella infections be diagnosed?
      • How can Shigella infections be treated?
      • Are there long term consequences of a Shigella infection?
      • How do people catch Shigella?
      • What can a person do to prevent this illness?
      • How common is shigellosis?
      • What else can be done to prevent shigellosis?
      • What is the government doing about shigellosis?
      • How can I learn more about this and other public health problems?
      • Some tips for preventing the spread of shigellosis
    • Strep Throat Strep throat (Group A, beta hemolytic, streptococcus pyogene, GAS) bacterial infection of the throat. Signs and symptoms of strep...learn more »
    • Streptococcal Infections Group A streptococcal infections are caused by group A streptococcus, a bacteria that causes a variety of health problems,...learn more »
      In This Article
      Streptococcal Infections Article
      • Group A streptococcal infections facts
      • What is group A Streptococcus (GAS)?
      • How are group A streptococcal (GAS) infections contracted?
      • What diseases are caused by group A streptococcal infection?
      • Are group A strep infections contagious?
      • What is the contagious period for group A strep infections?
      • What is the incubation period for group A strep infections?
      • What are the symptoms and signs of GAS infections?
      • What is invasive group A streptococcal disease? Who is most at risk for getting invasive GAS disease?
      • What are the symptoms and signs of necrotizing fasciitis?
      • What are the signs and symptoms of toxic shock syndrome (TSS)?
      • How are group A streptococcal (GAS) infections diagnosed?
      • What is the treatment for invasive group A streptococcal disease?
      • What specialists treat group A streptococcal infections?
      • What complications are seen with group A streptococcal infections?
      • Is it possible to prevent group A streptococcal infections?
      • What is the prognosis for group A streptococcal infections?
      • Where can people find more information about group A streptococcal infections?
    • Swine Flu Novel H1N1 influenza A virus infection (swine flu) is an infection that generally is transferred from an infected pig to a human,...learn more »
      In This Article
      Swine Flu Article
      • Swine flu (H1N1 and H3N2v influenza virus) facts
      • What is the swine flu?
      • How is swine flu transmitted? Is swine flu contagious?
      • What is the incubation period for swine flu?
      • What is the contagious period for swine flu?
      • How long does the swine flu last?
      • What causes swine flu?
      • Why is swine flu now infecting humans?
      • What are swine flu symptoms and signs?
      • What tests do health-care professionals use to diagnose swine flu?
      • What types of doctors treat swine flu?
      • What is the treatment for swine flu?
      • What is the history of swine flu in humans?
      • What are the risk factors for swine flu?
      • Can swine flu be prevented with a vaccine?
      • Can swine flu be prevented if the swine flu vaccine (or other flu strain vaccines) is not readily available?
      • Are there home remedies for swine flu?
      • Was swine flu (H1N1) a cause of an epidemic or pandemic in the 2009-2010 flu season?
      • What is the prognosis (outlook) and complications for patients who get swine flu?
      • Where can I find more information about swine flu (H1N1 and H3N2v)?
    • Teen Drug Abuse Drugs commonly abused by teens include tobacco products, marijuana, cold medications, inhalants, depressants, stimulants,...learn more »
      In This Article
      Teen Drug Abuse Article
      • Teen drug abuse facts
      • What drugs are abused by teenagers?
      • What are some adolescent drug use statistics?
      • What are the dangerous effects of drug use in teens?
      • How can parents prevent drug use?
      • What are the symptoms and warning signs of drug abuse?
      • What is drug abuse?
      • What are the causes and risk factors of teen drug use?
      • What are the symptoms of drug abuse in teens?
      • What is the treatment of drug intoxication?
      • What are treatments for drug addiction?
      • Where can a person get help for teen drug abuse?
    • Tension Headache A tension headache s one of the most common types of headaches, and the exact cause is not known. Factors that may contribute to...learn more »
      In This Article
      Tension Headache Article
      • Tension headache facts
      • What is a tension headache?
      • What causes tension headaches?
      • What are the symptoms of tension headache?
      • How are tension headaches diagnosed?
      • What is the treatment for tension headache?
      • Prescription medications for tension headaches
      • OTC drugs for tension headaches
      • Managing stress
      • Are there effective home remedies a cure for tension headache?
      • Can tension headaches be prevented?
    • Toxic Shock Syndrome (TSS) Toxic shock syndrome is an infection that causes symptoms such as low blood pressure, fever, and a rash with peeling skin....learn more »
      In This Article
      Toxic Shock Syndrome (TSS) Article
      • Toxic shock syndrome (TSS) facts
      • What is toxic shock syndrome?
      • What causes toxic shock syndrome?
      • What are risk factors for toxic shock syndrome?
      • What are toxic shock syndrome symptoms and signs?
      • How do physicians diagnose toxic shock syndrome?
      • What is the treatment for toxic shock syndrome?
      • What is the prognosis of toxic shock syndrome?
      • Is it possible to prevent toxic shock syndrome?
    • Travel Medicine Travelers should prepare for their trip by visiting their physician to get the proper vaccinations and obtain the necessary...learn more »
      In This Article
      Travel Medicine Article
      • Why should travelers see a physician before they leave on a trip?
      • What diseases occur in travelers, and how can disease be prevented?
      • Traveler's diarrhea
      • Malaria
      • Meningitis and encephalitis
      • Yellow fever
      • Hepatitis A
      • Typhoid fever
      • Polio
      • Cholera
      • What about diseases for which there is no vaccine or preventive medication?
      • What is safe to eat and drink while traveling?
      • What can I do to avoid insect bites?
      • What should be in my travel first-aid kit or medicine kit?
      • What are the medical concerns with jet lag?
      • What if I have a medical condition or a chronic disease?
      • What if I'm traveling while pregnant?
      • What about traveling with children?
      • Travel health insurance & medical evacuation insurance
      • Travel safety and health alerts
      • Where can I find additional information?
    • Typhus Typhus is a disease caused by Rickettsia bacteria. Symptoms and signs include fever, headache, nausea, vomiting, diarrhea, and...learn more »
      In This Article
      Typhus Article
      • Typhus facts
      • What is typhus? Are there different types of typhus?
      • What is the history of typhus?
      • What causes typhus? How is typhus transmitted?
      • What are typhus risk factors?
      • What are typhus symptoms and signs?
      • How is typhus diagnosed?
      • What is the treatment for typhus?
      • What is the prognosis of typhus?
      • Can typhus be prevented?
      • Where can people get more information about typhus?
    • Vertigo Vertigo is the sensation of spinning or rocking, even when someone is at rest. Vertigo may be caused by a problem in the brain or...learn more »
    • Yellow Fever Yellow fever is an infectious disease transmitted by infected mosquitoes. Side effects are rare with the yellow fever vaccine....learn more »
      In This Article
      Yellow Fever Article
      • Yellow fever facts
      • What is yellow fever? What is the history of yellow fever?
      • What causes yellow fever?
      • How is yellow fever transmitted?
      • What areas are high risk for contracting yellow fever?
      • What is the incubation period for yellow fever?
      • Is yellow fever contagious? How long is the contagious period for yellow fever?
      • What are yellow fever symptoms and signs?
      • How is yellow fever diagnosed?
      • What is the treatment for yellow fever?
      • How long does yellow fever last?
      • What is the prognosis for people with yellow fever?
      • Is it possible to prevent yellow fever?
      • What are the side effects of the yellow fever vaccine?
      • Where can people get more information on yellow fever?
    • Zika Virus The Zika virus is transmitted by the bite of an infected Aedes mosquito. Symptoms and signs of a Zika virus infection include...learn more »
      In This Article
      Zika Virus Article
      • Zika virus facts
      • What is Zika virus?
      • What is the history of Zika virus outbreaks?
      • What are causes and risk factors of a Zika virus infection?
      • How is the Zika virus transmitted?
      • What is the incubation period for a Zika virus infection?
      • Is the Zika virus contagious?
      • What are symptoms and signs of a Zika virus infection?
      • What exams and tests do health-care professionals use to diagnose a Zika virus infection?
      • Are there home remedies for a Zika virus infection?
      • What is the treatment for a Zika virus infection?
      • What specialists treat Zika infections?
      • What are the complications of Zika virus infections?
      • What are the risks of contracting a Zika virus infection during pregnancy?
      • What is the prognosis of a Zika virus infection?
      • Is it possible to prevent a Zika virus infection?
      • Is there a vaccine against Zika virus?
      • CDC advisory on travel to areas with Zika virus
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