BA 2 Variant Of Omicron Rises In The U.S.

While previously reported, the new version of the Omicron variant known as BA.2, has gained momentum with regards to increasing infections. Furthermore, new cases of BA.2 have been found in California, Texas, Washington, and New Mexico, with 20 mutations now identified.  

The ‘Stealth’ Variant 

Following on from BA.1, BA.2 is also known as the ‘stealth variant. The BA.2 is missing the spike 69-70 mutations so it does not cause the S gene target failure. This makes it harder to identify the variant on polymerase chain reaction ( PCR ) tests. This month is seeing the variant spreading quickly throughout the country.

What You Need To Know About This Variant Under Investigation

BA.2 was previously considered a variant of ‘not-much’ concern, however with BA.2 and its recent spread; it’s causing more of an alarm. Now, BA.2 is under investigation with the following pointers now known: 

• Despite its rapid spread in the U.S., there has been no difference in hospitalizations between the BA.2 subvariant and the original form of Omicron, also known as BA.1.
• BA.2 has emerged and has spread faster than BA.1 [a subvariant of Omicron]
• This sister variant, which is still Omicron, is interesting because it seems to be displacing Omicron in certain parts of the world. There is speculation that it may be more transmissible than its sibling.
• Some countries are now reporting a surge in the proportion of BA.2 subvariant infections 
• Laboratory studies have already verified many of its molecular properties.
• BA.2 has more than 20 mutations in its spike protein, which is a target of many COVID-19 vaccines because the virus uses it to enter healthy cells. 
• It is expected to be highly transmissible and result in less severe disease than the Delta or Beta variants, especially if one is fully vaccinated and — even better — boosted 

Considering how the BA.2 will compete against currently circulating viruses, the future is not yet known. Whether it will become a more severe disease is unknown, however, health authorities and experts are continuing to monitor frequencies of BA.2 through the use of genomic surveillance.

Vaccines Target This Variant’s 20 Mutations

With 20 mutations now evident in the country, U.S. citizens are advised that COVID vaccines do target these mutations. While studies have not yet shown the effectiveness of these vaccinations, it has been seen that these vaccinations do help in the protection against BA.2. 

Those who have not yet received their vaccinations or booster shots are advised to get their vaccinations and follow health and safety guidelines as recommended by leading health organizations and experts.

Recommendations For U.S. Citizens

While more research is being conducted on BA.2; the U.S. population is advised to continue wearing masks and adhere to health and safety measures which include social distancing and the use of sanitizers.

Vaccinated persons should also consider adhering to nonpharmaceutical interventions like face masks, physical distancing, and handwashing.