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Omicron BA.4, BA.5 is more…: Epidemiologist on new strains as Covid surges in South Africa

associated with a resurgence in infections in South Africa approximately four months on fromthe start of the Omicron wave. Pre-print - https://t.co/llcagIwEtI

Oliveira had earlier notified that the lineages have not caused a spike in infections in South Africa. So far, the subvariants have been detected in South Africa, Botswana, Belgium, Germany, Denmark, and U.K.

“Given the very low infections, hospitalizations and deaths in South Africa we are alerted about the continued evolution but not concerned," de Oliveira said. “All of the laboratory science on virus neutralization and vaccines are already under way and we are strengthening genomic surveillance."

WHO official had pointed out, so far, we haven't detected any changes in the epidemiology or severity of BA.4 or BA.5 compared to previous sub-lineages of Omicron. But this may change!

South Africa yesterday recorded 6,372 new cases with a positivity rate of 21.1%. That compares with 581 cases and a positivity rate of 4.5% on March 28. The National Institute of Communicable Diseases has said hospitalizations and deaths are rising, albeit slowly.

hospital death infection
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