Tommy Shek – Things to Know About Omicron Subvariants BA.1 vs. BA.2
Scientists inform that the Omicron variant, which first appeared in South Africa and Botswana in 2021, spread quickly and has become predominant worldwide. Because it is so contagious, most people have been vulnerable to this Omicron subtype. Since it appeared, scientists have discovered three major lineages within the new strain: BA.1, BA.2, and BA.3. They…