Scientists on alert over rising cases caused by Omicron cousin BA.2, World News
Scientists on alert over rising cases caused by Omicron cousin BA.2, World News,CHICAGO, Jan 30 – The highly transmissible Omicron variant of the SARS-CoV-2 virus — the most common form of which is known as BA.1 — now accounts for nearly all of the coronavirus infections globally, although dramatic
