Flu: All what you need to know
Influenza, or flu, is a respiratory illness caused by a virus. Flu is highly contagious and is normally spread by the coughs and sneezes of an infected person. Although unpleasant, flu is rarely life-threatening.
Influenza, or flu, is a respiratory illness caused by a virus. Flu is highly contagious and is normally spread by the coughs and sneezes of an infected person. Although unpleasant, flu is rarely life-threatening.
