Video of the teenager’s fall into a shallow river went viral in Chile, which was convulsed by unrest a year ago.

Sea walls designed to defend Venice against “acqua alta,” or high water, went into use on Saturday, testing their ability to battle the Italian city’s increasingly menacing floods.

Chris Christie, the former governor of New Jersey who for several days this week helped the president prepare for the debate, said he has tested positive for the coronavirus.

The scientific institute leading the trip denied that its policy had been applied to a specific sex, saying, “Women and men participate in our polar expeditions as equals.”

The men, whose identities were not made public, are charged with serious abuse of human rights.

India’s border dispute with China has accelerated its relations with the United States. Others worry that warming ties ignore India’s persecution of Muslims.

President Xi Jinping of China on Saturday sent a message to President Trump wishing him and the first lady a speedy recovery after the pair tested positive for the coronavirus, the latest addition to a growing list of world leaders who have wished the American president well.

On Wednesday night, President Trump spoke for 45 minutes to a jubilant and carefree crowd of 3,000 at the airport in Duluth, Minn.

For months, the White House’s strategy for keeping President Trump and his inner circle safe has been to screen all White House visitors with a rapid test.

After months of wishing that the coronavirus would “disappear, like a miracle” and insisting that the United States was “rounding the corner” in its fight against the pandemic, President Trump announced on Friday that he and the first lady had tested positive for the virus.