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What are the symptoms of influenza type A?

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Quick Answer

Common symptoms of influenza type A include a cough, sore throat, headaches, body aches, fatigue, chills, nausea, vomiting, diarrhea and a fever of more than 100 degrees Fahrenheit, according to the U.S. Department of Health & Human Services. Patients should seek immediate medical attention if symptoms include sudden dizziness, frequent vomiting, confusion, seizures, pain in the abdomen or chest, purple or blue lips, shortness of breath or difficulty breathing.

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What are the symptoms of influenza type A?
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Full Answer

Patients should also seek medical attention if their flu symptoms get better but later return with a more severe cough and fever, notes the U.S. Department of Health & Human Services. Influenza types A, B and C all include similar symptoms, although type A is typically the most severe. Colds and the flu exhibit similar symptoms, but generally the flu is more severe than a cold. People suffering from colds are more likely to experience nasal stuffiness.

Influenza type A can infect both people and animals but is more common in people, according to WebMD. Wild birds often act as hosts for the virus. Type A changes constantly and is usually associated with major flu epidemics. It is spread by infected people sneezing on uninfected people or infected people touching surfaces that others later touch. Influenza type B only infects humans. Type C is also found in people but is not as severe as A or B and usually does not make people extremely sick. Type C does not cause flu epidemics.

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