News 22 states in total challenge health worker vaccine mandate after second lawsuit: COVID-19 updates November 17, 2021November 17, 2021 Celina Tebor and John Bacon, USA TODAY Comments Off on 22 states in total challenge health worker vaccine mandate after second lawsuit: COVID-19 updates 12 more states have filed a federal lawsuit challenging President Joe Biden's COVID-19 vaccine mandating, joining 10 others. More updates.