MHSAA may have eye on fall with testing exemption for vaccinated athletes Fully vaccinated student-athletes may now forego weekly antigen testing FacebookTwitterEmail The Michigan High School Athletics Association has updated its COVID-19 policies in accordance from new guidance from the Michigan Department of Health and Human Services, with the biggest change coming for student-athletes who have been fully vaccinated against the virus.Tribune File Photo The Michigan High School Athletics Association has updated its COVID-19 policies in accordance from new guidance from the Michigan Department of Health and Human Services, with the biggest change coming for student-athletes who have been fully vaccinated against the virus.