US President Donald Trump has refused to tell Americans to wear masks to contain the spread of Covid-19.
Earlier, Dr Anthony Fauci, the country's top infectious disease expert, urged local and state authorities to encourage people to wear masks.
The wearing of face coverings has become a political issue in the US.
A number of US states, mainly in the South, are experiencing a surge in confirmed cases of coronavirus.
Meanwhile children in many US states have been told they won't be going back to school for the new academic year.


Canada announces retaliatory tariffs on $20 billion worth of US goods
Oman, Iran discuss temporary navigation corridor in Strait of Hormuz
China, India hold border talks, agree to continue search for boundary settlement
Slovak police thwart planned arson attack on drone factory
Record salmonella outbreak in Belgium infects at least 306
