Cass Balzer writes: “In 2020, many libraries proved essential to their counties’ coronavirus pandemic response by acting as testing sites, manufacturers of 3D-printed personal protective equipment, and donation centers for food pantries. In 2021, some are once again being called to assist in the fight against the virus—this time to serve as sites for vaccinations. Several factors may make libraries suitable in this regard: They’re usually open seven days a week, are typically wheelchair-accessible, and often boast safety features such as security cameras.”