Omicron variant BA.2 or what scientists are calling 'Omicron Stealth Variant' wreaks havoc in China, as the largest outbreak in two years occur, top executives of anti-Covid vaccine makers- Pfizer and Moderna are split on the requirement of a fourth Covid shot.
Many countries have approved a third 'booster dose' or 'precautionary dose' for its citizen, especially the three vulnerable groups.
However, a rapidly spreading BA.2 variant seems to be lurking in China, just as global lockdowns were ending. The two executives have agreed that the deadly novel coronavirus is here to stay.
Pfizer Inc. Chief Executive Officer Albert Bourla said in a CBS interview on Sunday that protection from three shots will wane and a fourth dose is needed “right now".