Ever since the Food and Drug Administration granted emergency use authorization for two new vaccines, employers, schools, and other organizations are grappling with whether to require Covid-19 vaccination.While organizations are certainly free to encourage their employees, students, and other members to be vaccinated, federal law provides that, at least until the vaccine is licensed, individuals must have the option to accept or decline to be vaccinated.Knowing what an organization can or cannot do with respect to Covid-19 vaccines can help them keep their employees, students, and members safe and also save the them from costly and time-consuming litigation.Much remains unknown...