After months of urging the public to wear masks and facial coverings to help stop infected people from spreading Covid-19, the Centers for Disease Control and Prevention (CDC) stated in newly released guidance that masks also protected the mask wearer from being infected.

Ugur Sahin, founder and chief executive officer of Germany-based BioNTech, sees the potent efficacy of BNT162b2 – the vaccine developed by his company and partner Pfizer – as the possible “beginning of the end” of the coronavirus pandemic.