The article you linked to contradicts your claim:TheBrain wrote:
I'm not a medical person, but it appears that at least in Israel, vaccinated people are having more trouble with the Delta variant than the unvaccinated. I've read (and heard) that unvaccinated people with natural immunity actually have broader immunity than those who are vaccinated.
I do understand Quantifier's point here (and thank you, Quantifier):I know Israel has a high vaccination rate, but it seems like something more is going on here. Per the article, even Israeli health officials are saying that the effectiveness of the Pfizer vaccine against the Delta variant is "weaker" than hoped for.Quantifier wrote:When (for instance) 2/3 of the population is vaccinated, there are twice as many vaccinated people as there are unvaccinated ones. If the vaccine protects from infection at just under 50% you will have just more cases among vaccinated people than among unvaccinated people. If the protection from infection is higher, then the vaccination rate at which infection rates among vaccinated vs non-vaccinated equalize is higher.
From there:
With a relatively high vaccination rate the percentage of critically ill patients is only 40% of what it was when there were no vaccines. If the entire population were vaccinated that would mean the vaccine protects against critical illness by 60%.The “percent of cases that turn critically ill is now 1.6%, compared to 4% at a similar stage in the third wave when there were no vaccines,” Prof. Eran Segal, a computational biologist at the Weizmann Institute of Science who advises the coronavirus cabinet, tweeted on Friday.
And just to remind everyone, in the early days of the pandemic the hope was to get vaccines that would protect from severe illness and death by about 50%.
Also, specifically regarding Israel, the age distribution there skews younger than in most western nations (Israel has higher fertility rates than typical western countries) which places a lower ceiling to the vaccination coverage that can be achieved currently.