When the flu peaks and how severe the season becomes is hard to predict, but there is good news because the current flu vaccine has been working very well against this year's viruses.
Flu season has been tough in Michigan. Schools are closing and influenza rates are spiking.
Learn why this year's flu has been so widespread and severe in Michigan.
The Michigan Department of Health and Human Services (MDHHS) is reporting an increase in flu activity across Michigan.
The good news is that this year's vaccine is matching well against the flu.
Confirmed cases of the swine flu are rising across Michigan, including West Michigan.
Currently, there is no vaccine for swine flu and the seasonal flu vaccine will not protect against it.
Health officials have Michigan's first two confirmed human cases of influenza A H3N2 this year have been found. Both people with the illness are from West Michigan.
Calvin College is the winner of Michigan's second annual Flu Vaccination Challenge. The challenge divides schools into three categories by size. Calvin College won in the small school category. Hope College was a close second.