Influenza Index

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Influenza (flu) is a respiratory illness caused by a virus. Flu symptoms include fever, cough, sore throat, runny nose, headache, fatigue, and muscle aches. The flu may be prevented with an annual influenza vaccination.

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    Related Diseases & Conditions

    • Fever Although a fever technically is any body temperature above the normal of 98.6 F (37 C), in practice, a person is usually not...learn more »
      In This Article
      Fever Article
      • Fever facts
      • What is a fever?
      • What causes a fever?
      • What are the signs and symptoms of a fever?
      • How is a fever diagnosed?
      • How should someone take a temperature for fever?
      • What is the treatment for a fever?
      • When should someone seek medical care for a fever?
      • What kind of doctors treat a fever?
      • What are complications of a fever?
      • What is the prognosis for a fever?
      • Is it possible to prevent a fever?
      • Where can people find more information about fevers?
    • 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?
    • Pneumonia Pneumonia is inflammation of the lungs caused by fungi, bacteria, or viruses. Symptoms and signs include cough, fever, shortness...learn more »
    • Sore Throat Sore throats are generally described as pain or discomfort in the throat area. A sore throat may be caused by bacterial or viral...learn more »
      In This Article
      Sore Throat Article
      • Sore throat facts
      • What is the difference between sore throat and strep throat?
      • What are the causes of sore throat?
      • What are the signs and symptoms of a sore throat?
      • Is a sore throat contagious?
      • When should I see a doctor for a sore throat?
      • How is strep throat diagnosed?
      • What are home remedies to soothe a sore throat?
      • What over-the-counter (OTC) medications will soothe a sore throat?
      • Are antibiotics necessary for a sore throat?
      • What can I do if I have a sore throat and am pregnant?
      • What if I have multiple recurrent episodes of strep throat?
      • How can I prevent a sore throat?
    • Diarrhea Diarrhea is a change is the frequency and looseness of bowel movements. Symptoms associated with diarrhea are cramping, abdominal...learn more »
      In This Article
      Diarrhea Article
      • Diarrhea facts
      • What is diarrhea?
      • What is the definition of diarrhea?
      • What symptoms are associated with diarrhea?
      • What are common causes of acute diarrhea?
      • Traveler's diarrhea
      • Viral gastroenteritis
      • Bacterial enterocolitis
      • Food poisoning
      • Parasites
      • Drugs
      • What are common causes of chronic diarrhea?
      • What kind of a doctor treats diarrhea?
      • When should the doctor be called for diarrhea?
      • How is the cause of diarrhea diagnosed?
      • What home remedies help the symptoms of diarrhea?
      • What medications are used to treat diarrhea?
      • When should antibiotics be used for diarrhea?
      • What are the complications of diarrhea?
      • How can dehydration be prevented and treated?
      • What about treatment of diarrhea in infants and young children?
      • What about treating diarrhea in older children and adults?
    • Cough (Chronic Cough) Chronic cough is a cough that does not go away and is generally a symptom of another disorder such as asthma, allergic rhinitis,...learn more »

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Terms related to Influenza:

  • Flu