Chicago’s been in the grip of an especially bad flu season this year, sending people to the hospital and keeping children home from school. We look at why influenza has been so difficult to fight.
Catching the flu may be the last thing on your mind as summer unwinds, but flu season is right around the corner. This year, there will be more vaccine options to help prevent against the influenza virus than in years past, including a vaccine that prevents against four strains instead of the traditional three strains of the virus. Read symptoms and tips to avoid the flu.