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.


Evacuations planned as suspected hantavirus outbreak traps 150 on ship off Cape Verde
Modi's party set to gain big in Indian state elections
Iran warns US Navy to stay clear of Hormuz after US offers to help stranded ships
Shooting at lake near Oklahoma City injures 10, more feared
United jet hits truck and light pole on approach to Newark airport
