Apa itu antigen test: why do some people not get New Crown? Is it possible that some people are naturally immune to New Crown virus? It is well known that the rate of infection and transmission of New Corona virus is very strong.

Recently, the World Health Organization introduced two new autovariants of Omicron ba 4、BA. 5 has been included in the detection list, Xe recombinant virus has also accelerated the spread all over the world, and XD, XL and other strains have also appeared one after another.