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.
South Korean ferry runs aground, all 267 people rescued
Indonesia's Semeru volcano erupts, alert level raised to highest
19 killed and 66 wounded in heavy Russian attack on Ukraine
Elon Musk, Ronaldo attend Trump's dinner for Saudi Crown Prince
Louvre museum to add 100 external cameras by 2026 after heist
