Over-the-counter sales for cold and flu medications also jumped this week. Health officials say flu activity is picking up in Michigan, but it hasn't peaked.
And although it looks like this year is a mild flu season, officials say we could still see a big spike in illness over the few weeks into March.
The Centers for Disease Control and Prevention has lifted all restrictions and made getting vaccine much easier for healthcare providers and health departments. There are about three million doses that providers can order directly from the manufacturer. Any unused doses will be refunded.
Health officials urge anyone who wants to avoid getting the flu to get a shot now, before Michigan hits peak flu level. Vaccine is available; call your doctor or health department.