GETTING an initial course of Covid-19 vaccines to unprotected groups all over the world should remain a top priority before offering booster shots to vulnerable groups, World Health Organisation (WHO) Emergency Director Mike Ryan said on Tuesday.
A major study on Tuesday found that two doses of Pfizer-BioNTech’s Covid-19 vaccine appear to have given 70% protection against hospitalisation in South Africa in recent weeks, suggesting weaker efficacy against the new Omicron variant.
Ryan said he expected the current vaccines would provide significant protection against hospitalisation and death, but that the data coming through was very preliminary and the WHO did not have enough of it yet to make a full determination.
“People are always asking should we be going for a primary vaccination or boosters, the reality is we should be doing both,” Ryan told an online event.
Ryan said Omicron would most likely replace Delta as the globally dominant
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