PRO/AH/EDR> COVID-19 update (30): vaccination impact, immune escape, variant, WHO, global

COVID-19 — Worldwide/Unknown
Vaccinated people in Israel are less likely to test positive for SARS-CoV-2, but a population-wide effect will take time to become clear.
Nature Briefing commentary: All eyes are on Israel, which has vaccinated roughly one-quarter of its population, for the 1st real-world evidence of a COVID vaccine’s efficacy. A preliminary analysis of people older than 60 who received the Pfizer-BioNTech vaccine found that it cut the chances of testing positive for the virus by a 3rd at 2 weeks after the