State of Michigan Executive Directive: Angie Szumlinski August 17, 2021News Protecting the most vulnerable Michiganders with an additional dose of COVID-19 vaccine https://content.govdelivery.com/attachments/MIEOG/2021/08/13/file_attachments/1905983/ED%202021-4%20Additional%20dose%20%28final%20signed%29.pdf