Eran Segal. (2021, August 17). Israel data showing the decay of vaccine efficacy over time. Y-axis is cases per 1000 from July 7 to Aug 10, for unvaccinated, and for people vaccinated at different times Cases are higher in those vaxed earlier Despite world-data caveats, this seems quite compelling https://t.co/5aNz48AC8F [Tweet]. @segal_eran. https://twitter.com/segal_eran/status/1427696623988117505