Q. How well do face masks protect against COVID-19?

Answer

This is a million dollar question. To a great extent face masks combined with other preventive measures such as vaccination frequent hand-washing and physical distancing can help slow the spread of the virus that causes COVID-19.The US Centre for Disease Control and Prevention (CDC) recommends masks for the general public. People who have not been fully vaccinated should wear face masks indoors and outdoors especially at crowded places. The German government has made it mandatory to wear face mask.