Diseases, Conditions, Syndromes

90% reduction in COVID-19 deaths after booster dose: Hong Kong study

A booster (third) dose of a SARS-CoV-2 vaccine was associated with a 90% reduction in death in people with multiple health conditions compared to 2 doses, according to a new study from Hong Kong published in CMAJ (Canadian ...

Diseases, Conditions, Syndromes

Who has imposed COVID rules on travellers from China?

More than a dozen countries have slapped fresh travel regulations on travellers from China, as the world's most populous nation faces a surge in COVID cases following its decision to relax strict virus restrictions.

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