Chastity Laskey, USA TODAY NETWORK St. Clair County has administered more than 80,661 doses of the COVID-19 vaccine, as of April 19, according to data from the Michigan Department of Health and Human Services. That's up 11% from the previous week's tally of 72,766 COVID-19 doses administered. In St. Clair County, 18% of people living in St. Clair County are fully vaccinated as of April 19. The Centers for Disease Control and Prevention considers someone fully vaccinated two weeks after they've been given a single-dose shot (Johnson & Johnson) or a second shot (either Pfizer or Moderna). Michigan reported 882,871 total cases of coronavirus, an increase of 6% from the week before.