PCR (Polymerase Chain Reaction) Related Diseases & Conditions

Medical tests and procedures are used to diagnose and treat a wide variety of conditions. Our doctors have compiled a list of ailments related to the topic of PCR (Polymerase Chain Reaction) that may be used to diagnose or monitor the status of the diseases and conditions listed below.

  • Scabies Scabies are itch mites that burrow under the skin and produce intense itching that's usually worse at night. Symptoms of scabies...learn more »
  • MRSA MRSA (methicillin resistant Staphylococcus aureus) bacteria causes skin infections with the following signs and symptoms:...learn more »
    In This Article
    MRSA Article
    • MRSA infections facts
    • What is methicillin-resistant Staphylococcus aureus (MRSA)?
    • What does a MRSA infection look like?
    • What are the risk factors for MRSA infections?
    • What are the signs and symptoms of a MRSA infection?
    • How is a MRSA infection transmitted or spread?
    • How is a MRSA infection diagnosed?
    • How should caregivers treat MRSA patients at home?
    • What is the treatment for a MRSA infection?
    • What is the prognosis (outlook) of a MRSA infection?
    • How can people prevent a MRSA infection?
    • What are the potential complications of a MRSA infection?
    • What is a "superbug"?
    • Where are other MRSA information sources?
  • Ebola (Ebola Virus Disease) Ebola hemorrhagic fever (HF) is an often-fatal disease that causes fever, headache, vomiting, diarrhea, sore throat, stomach...learn more »
    In This Article
    Ebola (Ebola Virus Disease) Article
    • Ebola hemorrhagic fever (Ebola virus disease) facts
    • What is Ebola hemorrhagic fever?
    • What is the history of Ebola hemorrhagic fever?
    • What causes Ebola hemorrhagic fever?
    • What are risk factors for Ebola hemorrhagic fever?
    • What are Ebola virus disease symptoms and signs?
    • How do physicians diagnose Ebola hemorrhagic fever?
    • What is the treatment for Ebola hemorrhagic fever?
    • What are complications of Ebola hemorrhagic fever?
    • What is the prognosis of Ebola hemorrhagic fever?
    • Is it possible to prevent Ebola hemorrhagic fever? Is there a vaccine for Ebola hemorrhagic fever?
    • What is the latest research on Ebola hemorrhagic fever?
  • Genital Herpes in Women Genital herpes is a sexually transmitted disease (STD) caused by the herpes simplex virus (HSV). Symptoms of genital herpes...learn more »
    In This Article
    Genital Herpes in Women Article
    • Genital herpes in women facts
    • What is genital herpes?
    • What causes genital herpes?
    • How is genital herpes transmitted?
    • What are the signs and symptoms of genital herpes?
    • How is genital herpes diagnosed?
    • Can genital herpes be cured?
    • What is the treatment for genital herpes?
    • Are home remedies or natural treatments effective for genital herpes?
    • How is genital herpes managed in pregnancy?
    • What is the prognosis for genital herpes?
    • Can genital herpes be prevented?
  • 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, hep C) facts
    • What is hepatitis C infection?
    • What is the nature (biology) of the hepatitis C virus?
    • How does liver damage occur in hepatitis C infection?
    • How is hepatitis C virus spread, is it contagious, and how can transmission be prevented?
    • What are the symptoms of hepatitis C infection?
    • What conditions outside the liver are associated with hepatitis C infection?
    • What is the usual progression of chronic hepatitis C infection?
    • Who is at high risk and should be tested for hepatitis C infection?
    • What are the diagnostic tests for hepatitis C virus and how are they used to diagnose hepatitis C infection?
    • What is the role of a liver biopsy in the management of chronic hepatitis C infection?
    • What is the treatment for hepatitis C infection?
    • Who should receive antiviral therapy for hepatitis C infection?
    • What are the different patterns of response to antiviral treatment?
    • What are the goals of therapy for hepatitis C infection?
    • What are the therapy options for previously untreated patients with chronic hepatitis C infection?
    • How are relapses and nonresponders treated?
    • Should individuals with acute hepatitis C infection be treated?
    • What are the side effects of treatment for hepatitis C infection?
    • What about liver transplantation for hepatitis C infection?
    • What is the current research and what is in the future for hepatitis C infection?
  • STDs in Men Sexually transmitted diseases (STDs) are infections transmitted during sexual contact. They may be caused by viruses, bacteria,...learn more »
    In This Article
    STDs in Men Article
    • What are sexually transmitted diseases (STDs)
    • Who is at risk for STDs?
    • What causes STDs?
    • What are the signs and symptoms of STDs?
    • List of STDs in men
    • Chlamydia
    • Gonorrhea
    • Trichomoniasis
    • HIV
    • Genital herpes
    • Genital warts (HPV)
    • Hepatitis
    • Syphilis
    • How are STDs diagnosed?
    • What is the treatment for STDs?
    • What is the prognosis for STDs?
    • Can STDs be prevented?
  • Cold Sores (Nongenital Herpes Simplex Infections) Herpes simplex infections are common and when they appear around the mouth and lips, people often refer to them as "cold sores"...learn more »
    In This Article
    Cold Sores (Nongenital Herpes Simplex Infections) Article
    • Herpes simplex infections (nongenital cold sores) facts
    • What are herpes simplex infections?
    • What causes cold sores?
    • What makes herpes (cold sores) recur?
    • How do cold sores spread?
    • What are the signs and symptoms of cold sores?
    • What is primary oral herpes?
    • What does recurrent herpes look like?
    • How long do cold sores last?
    • What are the risk factors for herpes simplex infections?
    • What are the possible complications of oral herpes (cold sores)?
    • What is the prognosis for oral herpes (cold sores)?
    • What other conditions can look like oral herpes (cold sores)?
    • What is angular stomatitis?
    • What are canker sores?
    • How is oral herpes diagnosed?
    • What is the treatment for cold sores, are there any home remedies, and what medications are used?
    • Is it possible to prevent cold sores?
  • 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?
    • What are rotavirus symptoms and signs?
    • How is rotavirus spread?
    • How is rotavirus diagnosed?
    • How is rotavirus treated?
    • What is the prognosis of rotavirus infection?
    • Can rotavirus infection be prevented with a vaccine? Are any side effects associated with the rotavirus vaccine?
  • Whooping Cough (Pertussis) Whooping cough (pertussis) is highly contagious respiratory infection that is caused by the bacteria Bordetella pertussis. There...learn more »
    In This Article
    Whooping Cough (Pertussis) Article
    • Whooping cough (pertussis) facts
    • What is whooping cough? What is the history of whooping cough?
    • What causes whooping cough?
    • What are risk factors for whooping cough?
    • Can whooping cough be prevented with a vaccine?
    • What are whooping cough symptoms, signs, and stages?
    • How is whooping cough transmitted?
    • Can adults get whooping cough?
    • How is whooping cough diagnosed?
    • What is the treatment for whooping cough?
    • What is the prognosis for whooping cough?
    • What are possible complications of whooping cough?
    • Where can people find more information about whooping cough (pertussis)?
  • Cholera Cholera is an infectious disease characterized by intense vomiting and profuse watery diarrhea and that rapidly lease to...learn more »
    In This Article
    Cholera Article
    • Cholera facts
    • What is cholera?
    • What are cholera symptoms and signs?
    • What causes cholera, and how is cholera transmitted?
    • What is the history of cholera?
    • Who is at risk for cholera, and where do cholera outbreaks occur?
    • How is cholera diagnosed?
    • What is the treatment for cholera?
    • What is the prognosis of cholera?
    • Can cholera be prevented? Are cholera vaccines available?
    • Where can people find more information about cholera?
  • Tuberculosis (TB) Mycobacterium tuberculosis is the bacterium that causes tuberculosis (TB). Symptoms and signs of TB include bloody sputum, fever,...learn more »
    In This Article
    Tuberculosis (TB) Article
    • Tuberculosis (TB) facts
    • What is tuberculosis?
    • Are there different types of tuberculosis?
    • What causes tuberculosis?
    • What are risk factors for tuberculosis?
    • What are tuberculosis symptoms and signs?
    • How do physicians diagnose tuberculosis?
    • What is the treatment for tuberculosis?
    • What are complications of tuberculosis?
    • What is the prognosis of tuberculosis?
    • How can people prevent tuberculosis?
  • Leprosy Leprosy (Hansen's disease) is a disfiguring disease caused by infection with Mycobacterium leprae bacteria. The disease is spread...learn more »
    In This Article
    Leprosy Article
    • Leprosy (Hansen's disease) facts
    • What is leprosy?
    • What is the history of leprosy (Hansen's disease)?
    • What causes leprosy?
    • What are the risk factors for leprosy?
    • What are leprosy symptoms and signs?
    • Are there different forms (classifications) of leprosy?
    • How is leprosy transmitted?
    • How is leprosy diagnosed?
    • What is the treatment for leprosy?
    • What are the complications of leprosy?
    • How is leprosy prevented?
    • What is the prognosis (outcomes) of leprosy?
    • Where can I find more information on leprosy?
  • Fragile X Syndrome Fragile X syndrome is the most common inherited form of mental retardation. It's caused by a mutation on the X chromosome. People...learn more »
    In This Article
    Fragile X Syndrome Article
    • Fragile X syndrome facts*
    • What is Fragile X syndrome?
    • What causes Fragile X syndrome?
    • What keeps the FMR1 gene from producing FMRP in Fragile X syndrome?
    • Human cells 101
    • How many people are affected by Fragile X syndrome?
    • How is Fragile X syndrome inherited?
    • What are the signs and symptoms of Fragile X syndrome?
    • Intelligence and learning
    • Physical
    • Social and emotional
    • Speech and language
    • Sensory
    • Is there a cure for Fragile X syndrome?
    • Are there treatments for Fragile X syndrome?
    • Educational options
    • Therapeutic options
    • Medication options
    • What are the options for adults who have Fragile X syndrome?
    • What should I do if I find out someone in my family has Fragile X syndrome?
    • What is being done to develop treatments or a cure for Fragile X syndrome?
    • Where can I go for more information about Fragile X syndrome?
  • Ramsay Hunt Syndrome Ramsay Hunt syndrome is an infection of a facial nerve that causes a red painful rash with blisters and facial paralysis. The...learn more »
    In This Article
    Ramsay Hunt Syndrome Article
    • What is Ramsay Hunt syndrome? What causes it?
    • What are the symptoms of Ramsay Hunt syndrome?
    • How is Ramsay Hunt syndrome diagnosed?
    • Is Ramsay Hunt syndrome contagious?
    • How does Ramsay Hunt syndrome compare with Bell's palsy?
    • How is Ramsay Hunt syndrome treated or prevented?
    • What is the outlook (prognosis) for patients with Ramsay Hunt syndrome?
    • Where can I find more information about Ramsay Hunt syndrome?
  • Tularemia Tularemia (rabbit fever) is an infection caused by the Francisella tularensis bacteria. People can become infected with tularemia...learn more »
    In This Article
    Tularemia Article
    • Tularemia facts
    • What is tularemia?
    • What are the different types of tularemia?
    • What causes tularemia?
    • What are symptoms and signs of tularemia?
    • How is tularemia diagnosed?
    • What is the treatment for tularemia?
    • Tularemia and bioterrorism
    • Is there a vaccine for tularemia?
    • Where can people find more information about tularemia?
  • Genetic Disease Genetic disease is a disorder or condition caused by abnormalities in a person's genome. Types of genetic inheritance include...learn more »
    In This Article
    Genetic Disease Article
    • What is a genetic disease?
    • What are the different types of inheritance?
    • Single gene inheritance
    • Multifactorial inheritance
    • Chromosome abnormalities
    • Mitochondrial inheritance
    • What is the human genome?
  • Meningococcemia Meningococcemia is a bloodstream infection caused by Neisseria meningitides. Meningococcemia symptoms include fever, headache,...learn more »
    In This Article
    Meningococcemia Article
    • Meningococcemia facts
    • What is meningococcemia?
    • What causes meningococcemia?
    • What are risk factors for meningococcemia?
    • What are symptoms and signs of meningococcemia?
    • How is meningococcemia diagnosed?
    • What is the treatment for meningococcemia?
    • What is the prognosis of meningococcemia?
    • Is it possible to prevent meningococcemia?
    • Where can people find more information on meningococcemia?
    • What research is being done on meningococcemia?
  • 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?
  • Schistosomiasis Schistosomiasis (snail fever), a disease caused by parasites, causes a variety of symptoms and signs, such as cough, rash and...learn more »
    In This Article
    Schistosomiasis Article
    • Schistosomiasis facts
    • What is schistosomiasis?
    • What causes schistosomiasis?
    • What are the symptoms and signs of schistosomiasis?
    • How is schistosomiasis diagnosed?
    • What is the treatment for schistosomiasis?
    • When should people with schistosomiasis seek medical care?
    • What are the complications of schistosomiasis?
    • Can schistosomiasis be prevented?
    • What is the prognosis (outcome) for schistosomiasis?
  • 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?
    • 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?
  • Leishmaniasis Leishmaniasis is a disease caused by the bite of an infected sand fly. The most common types of leishmania infection are...learn more »
    In This Article
    Leishmaniasis Article
    • Leishmaniasis facts
    • What is leishmaniasis?
    • What are the different types of leishmaniasis?
    • What causes leishmaniasis? How is leishmaniasis transmitted?
    • What are risk factors for leishmaniasis?
    • What are leishmaniasis symptoms and signs?
    • How is leishmaniasis diagnosed?
    • What is the treatment for leishmaniasis?
    • What is the prognosis of leishmaniasis?
    • Can leishmaniasis be prevented?
    • Where can people get more information about leishmaniasis?
  • Valley Fever Valley fever (coccidioidomycosis) is a disease caused by the inhalation of the Coccidioides immitis or C. posadasii fungus....learn more »
    In This Article
    Valley Fever Article
    • Valley fever (coccidioidomycosis) facts
    • What is valley fever (coccidioidomycosis)?
    • What causes valley fever (coccidioidomycosis)?
    • What are the symptoms and signs of valley fever (coccidioidomycosis)?
    • How is valley fever (coccidioidomycosis) diagnosed?
    • What is the treatment for valley fever (coccidioidomycosis)?
    • What is the prognosis (outcome) for valley fever (coccidioidomycosis)?
    • What are the risk factors for developing valley fever (coccidioidomycosis)?
    • Can valley fever (coccidioidomycosis) be prevented?
    • Is valley fever (coccidioidomycosis) contagious?
    • Where can one find more information on valley fever?
  • Mycobacterium Marinum Mycobacterium marinum (M. marinum) is bacteria found in fresh and saltwater that can infect the skin through cuts or scrapes,...learn more »
    In This Article
    Mycobacterium Marinum Article
    • What is Mycobacterium marinum?
    • What are other names for Mycobacterium marinum infections?
    • How common is Mycobacterium marinum?
    • How does a person get infected with Mycobacterium marinum?
    • Who is at risk for Mycobacterium marinum infection?
    • What are the symptoms of Mycobacterium marinum infection?
    • What tests are available to diagnose the infection?
    • How is Mycobacterium marinum infection treated?
    • What is the prognosis for those infected with Mycobacterium marinum?
    • How do I find a specialist?
    • What are possible complications from Mycobacterium marinum?
    • Do fish get infected with Mycobacterium marinum?
    • What else could it be?
    • How can I prevent this infection?
  • Bird Flu Bird flu (avian flu, avian influenza) infection in humans may result from contact with infected poultry. There is a vaccine to...learn more »
    In This Article
    Bird Flu Article
    • Bird flu facts
    • What is bird flu?
    • What causes bird flu?
    • What are risk factors for bird flu?
    • What are bird flu symptoms and signs?
    • How is bird flu diagnosed?
    • What is the treatment for bird flu?
    • What are the complications of bird flu?
    • What is the prognosis of bird flu?
    • Can bird flu be prevented with a vaccine?
    • Where can people find more information about bird flu?
  • SARS Severe acute respiratory syndrome (SARS) is a respiratory disease caused by the coronavirus SARS-CoV. Symptoms include fever and...learn more »
    In This Article
    SARS Article
    • Severe acute respiratory syndrome (SARS) facts
    • What is severe acute respiratory syndrome (SARS)?
    • What causes SARS? How is SARS transmitted?
    • What are risk factors for SARS?
    • What are SARS symptoms and signs?
    • How is SARS diagnosed?
    • What is the treatment for SARS?
    • What is the prognosis of SARS?
    • Is it possible to prevent SARS?
    • Is there a SARS vaccine? What research is being done on SARS?
    • Where can people get more information about SARS?
  • 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 food poisoning?
    • What are risk factors for Salmonella food poisoning?
    • What are symptoms and signs of Salmonella 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?
  • Bocavirus Bocavirus infection is usually only found in those with lower respiratory infections or diarrhea. Symptoms include cyanosis,...learn more »
    In This Article
    Bocavirus Article
    • Bocavirus facts
    • What is bocavirus?
    • What are the symptoms and signs of bocavirus infection?
    • How is bocavirus infection spread?
    • How is bocavirus infection diagnosed?
    • What is the treatment for bocavirus infection?
    • What is the prognosis of bocavirus infection?
    • Can bocavirus infection be prevented?
  • 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?
    • What causes Rocky Mountain spotted fever?
    • What are Rocky Mountain spotted fever risk factors?
    • What are Rocky Mountain spotted fever symptoms and signs?
    • How do physicians diagnose Rocky Mountain spotted fever?
    • What is the treatment for Rocky Mountain spotted fever?
    • What is the prognosis of Rocky Mountain spotted fever?
    • Is it possible to prevent Rocky Mountain spotted fever?
  • Enterovirulent E. coli (EEC) Enterovirulent Escherichia coli (E. coli) are strains of related bacteria that have a strong propensity to cause gastrointestinal...learn more »
    In This Article
    Enterovirulent E. coli (EEC) Article
    • Enterovirulent E. coli (EEC) facts
    • What are enterovirulent E. coli (EEC)?
    • What are the symptoms caused by enterovirulent E. coli (EEC)?
    • A new EEC group? (E. coli 0104:H4)
    • How do enterovirulent E. coli groups cause disease?
    • When should one seek medical care for enterovirulent E. coli infection?
    • How are enterovirulent E. coli infections diagnosed?
    • How are enterovirulent E. coli infections treated?
    • How is self-care at home done for enterovirulent E. coli?
    • What are the complications associated with enterovirulent E. coli (EEC)?
    • How are enterovirulent E. coli (EEC) infections prevented?
    • What are the prognoses (outcomes) of enterovirulent E. coli infections?
  • Monkeypox Monkeypox is a viral disease that causes symptoms such as fever, sweating, and a rash with papules and pustules on the face and...learn more »
    In This Article
    Monkeypox Article
    • Monkeypox facts
    • What is monkeypox?
    • What is the history of monkeypox?
    • What causes monkeypox? How is monkeypox transmitted?
    • What are risk factors for monkeypox?
    • What are monkeypox symptoms and signs?
    • How is monkeypox diagnosed?
    • What is the treatment for monkeypox?
    • What is the prognosis of monkeypox?
    • Can monkeypox be prevented?
    • What research is being done on monkeypox?
    • Where can people get more information about monkeypox?
  • Cyclospora Infection (Cyclosporiasis) Cyclospora cayetanensis is a parasite that causes infection when humans ingest food contaminated with feces from an infected...learn more »
    In This Article
    Cyclospora Infection (Cyclosporiasis) Article
    • Cyclospora infection (cyclosporiasis) facts
    • What is Cyclospora infection?
    • What causes Cyclospora infection?
    • What are the risk factors for a Cyclospora infection?
    • What are the symptoms of Cyclospora infection?
    • How is Cyclospora infection diagnosed?
    • What is the treatment of Cyclospora infections?
    • What are complications of a Cyclospora infection?
    • What is the prognosis of a Cyclospora infection?
    • Is it possible to prevent Cyclospora infections?
  • Plague (Black Death) Plague is an infectious disease caused by the bacteria Yersinia pestis. Transmission to humans occurs via fleas that have bitten...learn more »
    In This Article
    Plague (Black Death) Article
    • Plague (Black Death) facts
    • What is plague? What is the history of plague?
    • What causes plague?
    • What are risk factors for plague?
    • What are plague symptoms and signs?
    • How do physicians diagnose plague?
    • What is the treatment for plague?
    • What is the prognosis of plague?
    • Is it possible to prevent plague?
    • What are modern concerns about plague?
  • Microsporidiosis Microsporidiosis is an infection caused by the microsporidia parasite. The disease is uncommon in people with normal immune...learn more »
    In This Article
    Microsporidiosis Article
    • Microsporidiosis facts
    • What is microsporidiosis? What causes the disease?
    • How are microsporidia transmitted?
    • What symptoms does microsporidiosis cause?
    • How is microsporidiosis diagnosed?
    • How is microsporidiosis treated?
    • How is microsporidiosis prevented?
  • Q Fever Q fever is a highly infectious disease that causes high fever, diarrhea, cough, and sweating. Infected animals may transmit Q...learn more »
    In This Article
    Q Fever Article
    • Q fever facts
    • What is Q fever?
    • Where does the name Q fever come from? What causes Q fever?
    • How does Q fever spread?
    • Who is at risk for getting Q fever?
    • Are there different forms of Q fever?
    • What are the signs and symptoms of Q fever?
    • How do physicians diagnose Q fever?
    • Is Q fever deadly?
    • Is Q fever contagious?
    • What is the danger of getting Q fever while pregnant?
    • What complications may arise with Q fever?
    • What is the prognosis for Q fever?
    • If it is not Q fever, what else could it be?
    • What should people do if they have been exposed to Q fever?
    • Is there any treatment for Q fever?
    • Is there a vaccine against Q fever?
    • Is Q fever a bioterrorism threat?
    • Where can people find more information about Q fever?

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