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The NICD says high population level immunity in SA likely means in the absence of a new, more severe variant, future spikes in infections are unlikely to result in large increases in hospitalisation and deaths.
There has not been sufficient evidence yet to say anything about the change in the severity of the disease caused by these new sub-variants.
BA.4 and BA.5 were identified by the ECDC as variants of concern earlier this month.
BREAKING: After Hyderabad, India’s second case of Omicron variant BA.4 detected in Tamil Nadu - The Omicron BA.4 subvariant sample was reportedly found in an African national who had arrived in India at the Hyderabad Airport.
SA positivity rate surges to 23% from 19% in one day, with scientists pointing to two Omicron variants as the culprits