There are confirmed cases of bird flu in dairy cattle in eight US states, according to the US Department of Agriculture
The vote by secret ballot, announced by Ahmed Robleh Abdilleh from Djibouti at a major annual meeting, was seen as a formality since Tedros was the only candidate running.
Ministers and delegates took turns to shake hands and hug Tedros, a former health minister from Ethiopia, who has steered the UN agency through a turbulent period dominated by the COVID-19 pandemic. The president had to use a gavel several times to interrupt the applause.
German Health Minister Karl Lauterbach tweeted on Tuesday: "Just re-elected as Director General of #WHO: @DrTedros. 155/160 votes, spectacular result. Congratulations, fully deserved. Germany recently overtook the United States as the UN health agency's top donor.