Two new Omicron variants are spreading. Will they drive a new U.S. surge? - National Geographic
5/9/2022 12:00:00 AM2 years 11 months ago
by Sanjay Mishra
by Sanjay Mishra
The subvariants BA.4 and BA.5 may dodge immunity, especially in unvaccinated people, possibly causing a spike in infections worldwide.
New versions of Omicron are again causing a surge of COVID-19 cases in South Africa, and studies show that these new subvariants are so different from the original version of Omicron that immunity ge… [+7236 chars]
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