The public body voted 5-4 to approve a $200,000 contract for the city's federal litigation against the Detroit Will Breathe movement.
Researchers originally wanted older volunteers, but the are now opening trial to younger adults, especially those not yet eligible for Pfizer and Moderna vaccines.
Concerns grow over more contagious COVID strain. So far, 13 people in Washtenaw County and four in Wayne County have tested positive for the B.1.1.7. strain.