NACI backs 3rd dose of COVID-19 vaccine for immunocompromised

Some immunocompromised individuals may require an additional dose of a COVID-19 vaccine following a one-or-two-dose primary series, the Public Health Agency of Canada (PHAC) said Friday. Based on new recommendation … Read More

U.S. to recommend COVID-19 vaccine booster for all Americans to counter Delta: sources

U.S. experts are expected to recommend COVID-19 vaccine boosters for all Americans, regardless of age, eight months after they received their second dose of the shot, to ensure lasting protection … Read More

COVID-19 vaccine protection likely to dim over time: U.K. advisers

The protection that COVID-19 vaccines give against coronavirus infection, and potentially severe disease, is highly likely to wane over time so vaccine campaigns will continue for years to come, scientists … Read More

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