A Michigan township said schools would be closed on Monday after several staff members had a "negative reaction" to the COVID-19 booster shot. Saginaw Township Community Schools posted an announcement on the homepage of its website , noting that, due to being understaffed, schools in its district would be closed on Monday, affecting after-school programs and child care. "A large number of our staff had a negative reaction to the COVID booster shot given at a voluntary clinic over the weekend," the notice said. "There is a substitute teacher/staff shortage throughout the state, further complicating the availability to cover those...