Unemployment benefits expire for millions as Trump rages— EU launches vaccine rollout, historic day in virus fight— Millions face new UK virus restrictions; border chaos eases— A wave of COVID-19 has engulfed prisons in Belarus that are packed with people in custody for demonstrating against the nation’s authoritarian president.— Health officials in Thailand say two new clusters of coronavirus cases have been found that appear to be linked to a major outbreak discovered a week earlier among migrant workers in an industrial province near Bangkok. — A Black doctor who died battling COVID-19 complained of racist medical care in widely shared social media posts.