The emerging BA.2 form of the Omicron coronavirus variant does not seem to be any more severe than the original BA.1 form, an official of the World Health Organization said on Feb. 1.
The BA.2 subvariant of the Omicron coronavirus variant, which has quickly taken over in Denmark, is more transmissible than the more common BA.1 and more able to infect vaccinated people, a Danish study found.
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 surges in COVID cases have already peaked in some countries.
The prevailing theory about the Omicron variant is that it is going to rip through the population quickly and possibly burn out, marking the downside of the COVID-19 pandemic. But researchers are expressing concern about a subvariant of Omicron dubbed BA.2 that appears to be tearing through Denmark, just as the first Omicron wave subsided.
The BA.2 subtype of the Omicron coronavirus variant appears to have a substantial growth advantage over the currently predominant BA.1 type, Britain’s UK Health Security Agency said on Jan. 28.