UKHSA's Prof Susan Hopkins questioned over face masks at Covid inquiry. There is only “weak evidence” that high-grade face masks better protected health workers than surgical ones in the pandemic, the ...

The evidence that FFP3 face masks were more protective for doctors than surgical masks is ‘weak’, the Covid inquiry has heard. Professor Susan Hopkins, chief medical adviser at the UK Health Security ...

There is only “weak evidence” that high-grade face masks better protected health workers than surgical ones in the pandemic, the Covid inquiry has been told. Prof Susan Hopkins, chief medical adviser ...