4th Pfizer, Moderna shot less effective against Omicron: Israeli study
JERUSALEM, Jan. 17 (Xinhua) — Preliminary results from an Israeli study showed low efficacy of the fourth COVID-19 vaccine dose against the Omicron variant, Israel’s largest hospital said in a statement on Monday. In the study, launched in late December, 270 staff members of Sheba Medical Center received the fourth dose of Pfizer or Moderna … Read more