About that Israeli 39% Pfizer effectiveness. This makes me feel a bit better:

[LeftInTX]

Some of this info is a few weeks old, but it might explain why Israel's breakthrough rate is so high. The actual number of Covid cases in Israel is still low and apparently, their vaccination rate is like 85%...So, when you have a high vaccination rate, it's gonna make it look like the vaccine is less effective than it actually is. Of course, we need to be concerned, but it isn't as bad as I thought it was..Heck, I was thinking we were almost back to 2020.

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Paywall article from WaPo:
Vaccine doubters’ strange fixation with Israel
https://www.washingtonpost.com/politics/2021/07/19/vaccine-skeptics-zero-israel-again-some-reason/

It’s true that most new cases are coming from the vaccinated community, but that’s in large part because of how relatively big that community is in Israel. The latest numbers show that 85 percent of Israeli adults are vaccinated, meaning there are more than five times as many of them as unvaccinated people.

Epidemiologist gives an explanation. From June 27th, but it explains the stats...I know we've got the UK with 88% effectiveness and Israel with 39% effectiveness and the whole thing has got my head spinning
Israel, 50% of infected are vaccinated, and base rate bias

https://yourlocalepidemiologist.substack.com/p/israel-50-of-infected-are-vaccinated

The more vaccinated a population, the more we’ll hear of the vaccinated getting infected. For example, say there’s a community that’s 100% vaccinated. If there’s transmission, we know breakthrough cases will happen. So, by definition, 100% of outbreak cases will be among the vaccinated. It will just be 100% out of a smaller number.

Original article that freaked me out:

Israel says Pfizer Covid vaccine is just 39% effective

https://www.cnbc.com/2021/07/23/delta-variant-pfizer-covid-vaccine-39percent-effective-in-israel-prevents-severe-illness.html

[HUAJIAO]

1. Good post,

I've already used a lot of this info infighting off dumb and dumber anti-vaxxers/maskers.