Omicron sub-variant BA.2 more infectious, evades vaccine protection: study

London: According to a Danish study, the BA.2 Omicron subvariant is more contagious than the original BA.1 strain among both vaccinated and non-vaccinated people.

CNBC reported that the only peer-reviewed study so far has shown that fully vaccinated people are more likely to have BA.2 than the previous strain, but they are less likely to spread it to others, CNBC reported.

This also shows that the subvariant is even better at escaping vaccine safety Researchers affiliated with the University of Copenhagen and the Danish Ministry of Health said that compared to BA.1, which was already significantly more contagious than any other COVID variant.

On the other hand, transmission rates among non-vaccinated people were higher with BA.2 than with BA.1, indicating that non-vaccinated people were carrying a higher viral load with BA.2.

The report said the researchers also found that those who received the booster were less likely to spread the virus than those who were fully vaccinated.

“This indicates that following a successful infection, vaccination protects against further transmission, and even more so for BA.2 than for BA.1,” the scientists found.

The study also noted that higher susceptibility to infection and greater communicability of BA.2 would result in a more widespread spread of the virus among non-vaccinated children in schools and day care.

According to World Health Organization, The odds of spread within a household were 39 percent for BA.2 versus 29 percent for BA.1, the original Omicron strain.

The global health body has not yet labeled BA.2 a distinct type of concern from omicron. However, WHO officials warn that new versions will almost certainly emerge as omicrons spread around the world at an unprecedented rate.

“There is currently no evidence that BA.2 lineage is more severe than BA.1 lineage,” CDC spokeswoman Kristen Nordlund was quoted as saying.

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