A study by South African scientists has shown that a booster dose of Johnson & Johnson's COVID-19 vaccines is also highly effective against the new variant of the coronavirus Omikron. This is another formulation (after the AstraZeneca, Pfizer and Moderna vaccines) that has had such results.
A single-dose booster dose of Johnson & Johnson's COVID-19 vaccine was 84% effective in preventing hospitalization in South African health workers who became infected as a result of the spread of the Omikron variant, the country's health service said.
The South African study looked at 69,092 health car...
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