Lockdowns were imposed in parts of Beijing on Saturday to try and prevent the spread of a new coronavirus cluster, highlighting the challenges that lie ahead even for places where outbreaks are under control. It came as Brazil claimed the unenviable position of having the second-highest virus death toll worldwide behind the United States, with no sign the infection rate is slowing in Latin America. The respiratory disease was first detected in central China last year, believed to have jumped from an animal to humans at a market that sold wildlife.
