Influenza (Seasonal Flu) (cont.)
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The symptoms of influenza (flu) appear suddenly and often include:
Influenza usually does not cause symptoms in the stomach or intestines, such as vomiting and diarrhea.
Other conditions have symptoms similar to the flu, such as the common cold, bacterial infections, and infectious mononucleosis.
Influenza (flu) usually comes on suddenly. In many cases people can pinpoint the hour when symptoms started. Symptoms develop 1 to 4 days after you are infected, and they include:
Complete recovery may take 1 to 2 weeks or longer. Fatigue and weakness can last for several weeks.
Complications of influenza may develop in anyone, but they are much more likely in older adults and people who have other health problems, especially heart and lung diseases.
eMedicineHealth Medical Reference from Healthwise
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