So it looks like Israel is seeing breakthrough infections in the cohort that was vaccinated first suggesting some waning immunity after 6 months which jives with Pfizer saying they have similar data and are recommending the third shot/second booster. It would be easiest to conclude Pfizer is just angling for an annuity here but I see no reason why the Israelis would be anything but truthful in this instance.
We'll see how this develops over time.
We'll see how this develops over time.