The Israeli data is showing that the Pfizer's vaccine effectiveness against infection is waning over time among the fully vaccinated. * Vaccinated in January:

The Israeli data is showing that the Pfizer's vaccine effectiveness against infection is waning over time among the fully vaccinated. * Vaccinated in January: 16% protection * Vaccinated in February: 44% protection * Vaccinated in March: 67% protection * Vaccinated in April: 75% protection https://www.timesofisrael.com/israeli-uk-data-offer-mixed-signals-on-vaccines-potency-against-delta-strain/ https://www.timesofisrael.com/israeli-uk-data-offer-mixed-si... See also video from John Campbell about it: https://www.youtube.com/watch?v=wNbs4LCgrcY https://www.youtube.com/watch?v=wNbs4LCgrcY The protection against hospitalisation is about 88% and seems stable over time.