A COVID-19 surge in South Africa is being driven by omicron sub-variants, including BA.4 and BA.5. The World Health Organization (WHO) said there was no evidence that BA.4 was leading higher rates of hospitalization or death.
A COVID-19 surge in South Africa is being driven by omicron sub-variants, including BA.4 and BA.5. The World Health Organization (WHO) said there was no evidence that BA.4 was leading higher rates of hospitalization or death.
