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.


Israel and Lebanon agree to extend ceasefire
Israel targets head of Hamas armed wing with Gaza strike
African public health agency announces new Ebola outbreak in Congo
Trump leaves Beijing with few wins, many warm words for Xi
Trump says he won't be much more patient with Iran
