Influenza, commonly known as the flu, is a respiratory illness that’s contagious and caused by the influenza A or B viruses. Common flu symptoms are high fevers, fatigue, weakness, and body aches. These symptoms show themselves between one to four days after contracting the virus. As stated, the flu is contagious. It spreads on the inhalation of air contaminated with the virus. You’ll also get the flu by touch if you get in contact with...










