The flu is a contagious respiratory illness caused by influenza viruses that infect the nose, throat, and lungs. It can cause mild to severe illness, and at times can lead to death. The best way to prevent the flu is by getting a flu vaccine each year. The Lenawee County Health Department in now offering flu vaccine for everyone 6 months and older. Please call 517-264-5226 option #2 to schedule your appointment today.