Question

what is flu?and when does it come?​

Answer 1

Answer:

A common viral infection that can be deadly, especially in high-risk groups.

Answer 2

Answer:

When you get the flu (influenza), it will often start with mild muscle aches, a slight tickle in the throat, or a worn-out feeling you just can't shake. Common wisdom suggests that if you treat flu when symptoms first appear, you may be able to shorten the duration and severity of the illness.