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SA experienced a fifth wave of Covid-19 infections despite 97% of the population having antibodies due to previous infections or vaccination, the results of a blood survey show.

Examination of 3,395 samples from blood donors earlier in 2022, at the tail end of the fourth wave of infections, showed that 87% of South Africans had previously been infected with the virus, while just more than 97% had either had a previous infection or a vaccination or both. The study was lead by Stellenbosch University’s DST-NRF Centre of Excellence in Epidemiological Modelling and Analysis and the SA National Blood Service...

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