What is influenza (flu)? Influenza (flu) is a viral infection.
People often use the term "flu" to describe any kind of mild
illness, such as a cold or a stomach virus, that has symptoms
like the flu. But the real flu is different. Flu symptoms are
usually worse than a cold and last longer. The flu usually does
not cause vomiting or diarrhea in adults. flu outbreaks happen
in late fall and winter. What causes the flu? The flu is caused
by influenza viruses A and B. There are different strains of the
flu virus every year. What are the symptoms? The flu causes a
fever, body aches, a headache, a dry cough, and a sore or dry
throat. You will probably feel tired and less hungry than usual.
The symptoms usually are the worst for the first 3 or 4 days.
But it can take 1 to 2 weeks to get completely It usually takes
1 to 4 days to get symptoms of the flu after you have been
around someone who has the virus. get better without problems.
But sometimes the flu can lead to a bacterial infection, such as
an ear infection,