WASHINGTON – The US Centers for Disease Control and Prevention (CDC) currently recommends that Americans wear hooded masks to protect against the deadly virus, the United States President Donald Trump said Friday.

"The CDC is recommending the use of non-medical masks for voluntary health measures," Trump told the April 4, 2020 press release. He said it was voluntary. They asked for it within this time, ”he said.

According to data compiled by Johns Hopkins University, more than 277,000 cases of the infection in the United States have been reported, with more than 7,100 deaths.

Stanley Perlman, a professor of microbiology and immunology at the University of Iowa, told Xinhua that "no cases are excluded in the case of a 19-case polio infection in the United States because they have not been diagnosed." . This also makes the strategy of reducing infections more difficult.

"However, at this time it is not known whether or not those without the virus transmitted the virus to a large extent," he said. An epidemic test is the only way to solve this problem. ”

Update: October