The week ending June 20, 2009, MDCH began aggregate flu reporting, which includes flu-like illness and confirmed and probable cases of seasonal and 2009 H1N1 flu. This report, found below, will be updated every Tuesday by 5 p.m. The week ending June 20, 2009, MDCH began aggregate flu reporting, which includes flu-like illness and confirmed and probable cases of seasonal and 2009 H1N1 flu. This report, found below, will be updated every Tuesday by 5 p.m.
Confirmed case of 2009 H1N1 flu: A person with influenza-like illness (ILI) who tests positive for 2009 H1N1 flu by RT-PCR as performed by the MDCH Bureau of Laboratories or a commercial laboratory with a validated PCR test.
Probable case of 2009 H1N1 flu: A person with an ILI who tests positive with either a commercial novel influenza A H1 PCR test that has not been validated by the MDCH Bureau of Laboratories or who tests positive for influenza A, but is negative for seasonal influenza H1 and H3 by RT-PCR.
Click here for the latest aggregate counts of Michigan flu-like illnesses and deaths and here for archived aggregate reports
Click here for the latest Michigan FluFocus report and here for the Michigan FluFocus archive
Click here for the FluBytes archive
Click here for flu-like illness activity in Michigan
Click here for more information on the flu sentinel surveillance program