Omicron Subvariant Doesn’t Make People Sicker Than Original Omicron, WHO Says

While studies show the Omicron subvariant spreads more easily than the highly transmissible original Omicron variant, there’s no evidence the subvariant makes people any sicker,

Feb. 1, 2022 -- While studies indicate the Omicron subvariant spreads more easily than the highly transmissible original Omicron variant, there’s no evidence the subvariant makes people any sicker, a World Health Organization official said,Maria Van Kerkhove, WHO technical lead, said Tuesday at a news conference that both the Omicron variant, labeled BA.1 and the subvariant, BA.2, cause less severe illness than the Delta variant.

The WHO named Omicron “a variant of concern” in November. The subvariant, BA.2, has not been recognized as a separate variant of concern. A study conducted by Danish scientists showed that BA.2 is much more transmissible than BA.1 among vaccinated and unvaccinated people, spreads easily across all groups, and is “adept” at infecting vaccinated and boosted people,But researchers found that vaccinated people who are infected with BA.2 don’t transmit the virus as easily as the unvaccinated, according to the study. Boosted people transmitted the virus less than fully vaccinated people.

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