December 18th local time, WHO held a regular press conference on COVID-19.
Michael Ryan, head of the WHO Health Emergency Project, said that the number of cases reported by Central and South American countries such as Mexico and Brazil in the past few days has increased, which is worrying.
Mexico and other North American countries have never actually emerged from the first wave of the epidemic.
Although the epidemic has been controlled to a certain extent, cases have surged again, as have Brazil and the United States.
The Americas region is currently in a phase of intensive virus transmission.