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Taiwan approves second Covid booster shot for elderly

Taiwan approves second Covid booster shot for elderly

Taiwan's government has approved a second Covid-19 booster vaccine dose for those 65 and older, and third boosters for the immunocompromised, as it looks to step up its fight against a spike in domestic infections.

Pfizer booster study lifts mood over Omicron variant

Pfizer booster study lifts mood over Omicron variant

Three doses of the Pfizer-BioNTech coronavirus vaccine appear effective against the Omicron variant, a lab test indicated -- encouraging news, even as Denmark and Britain announced new restrictions to stem surging caseloads.

Vietnam allows Covid extra shots starting December

Vietnam allows Covid extra shots starting December

The Health Ministry on Wednesday approved administrating extra Covid-19 shots at least 28 days after the final standard dose, while allowing the mix of certain vaccines.

December 2, 2021 | 03:00 am PT

Booster shots recommended after six months: experts

Booster shots recommended after six months: experts

Efficacy of the second Covid-19 vaccine shot would gradually drop after six months, requiring a third to prevent infection, experts warned.

November 3, 2021 | 04:47 pm PT

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