Covid news live: Nigeria likens Omicron border closures to ‘travel apartheid’; Russia and Argentina report first cases
High commissioner says Omicron is mild variant and travel ban not necessary; fully vaccinated traveller to Argentina had tested negative on departure and arrival
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The Johnson & Johnson booster shot may work well for those who originally had a Pfizer vaccine, a recent study has found.
Researchers at the Beth Israel Deaconess Medical Center in Boston studied 65 people who had received two shots of the Pfizer vaccine. Six months after the second dose, the researchers gave 24 of the volunteers a third dose of the Pfizer vaccine and gave 41 the Johnson & Johnson shot.
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