Beijing has reported just 15 virus deaths as it faces huge surge since unwinding restrictions; other nations cite worries over new variants as they screen Chinese arrivals

When it comes to avoiding ‘substantial’ disease, boost was 71% effective for Pfizer, 89% for Moderna, but 4th shots give only small edge over 3-dose regimen in preventing infection

Salman Zarka urges Israelis to take precautions during Hannukah, get updated vaccine; Health Ministry warns flu, RSV viruses spreading

The past 2 winters brought major COVID peaks, and now, as the mercury falls, new Omicron-descended variants are on the rise and already account for 17% of Israel's recorded cases

Shot tweaked to target Omicron strain gives those 55 and older a four-fold boost over those who got regular shot and 13 times more antibodies than those with no booster

Combo shots modified to better protect against Omicron strains while still targeting earlier versions of the virus

Health authorities recommend those 65 and up receive vaccine along with other at-risk groups

Elderly and at-risk to be given priority; unclear whether vaccines will immediately be available to all, with lethargic response expected from public

Health reporter Nathan Jeffay updates us on new promising research for Parkinson's and receding gums; news editor Amy Spiro on a reality TV series featuring ultra-Orthodox women

Vaccines will increase protection even though Omicron has already changed since they were developed, says Bar-Ilan epidemiologist