The new BA.2 sub-strain has been detected in 55 countries including the U.S., but the World Health Organization says it is not a variant of concern. READ MORE: https://abcn.ws/3fYVXBA #ABCNews #Omicron #BA2variant #Variant
Britain on Thursday launched a trial to assess the immune responses generated if doses of the COVID-19 vaccines from Pfizer Inc. and AstraZeneca Plc are combined in a two-shot schedule. The British researchers behind the trial said data on vaccinating