The Ky data doesn't jive with the rest of the world. Below is an article with way more info. But as INGO tradition I didn't read it all.One thing that might prove reliable is if we had data on hospitalizations/deaths of people who've had covid a second time. The KY study suggests that of the people who had covid in 2020, the unvaccinated covid survivors were twice as likely to become infected than those who were vaccinated.
It was a very small group in the case evaluation, but it seems enough for the CDC to justify a policy of vaccinating even people who've had covid. I think I'd want to see it in a much wider group.
Update August 6: CDC has released a small analysis in Kentucky and indicated that it's proof that vaccines are more effective than natural immunity. Read the analysis here. According to CDC, among the reinfected sample, 20% had been fully vaccinated. Among those who had Covid and were not later reinfected, 66% were unvaccinated. "Kentucky residents who were not vaccinated had 2.34 times the odds of reinfection compared with those who were fully vaccinated."
Updated August 6: In Israel, more than 7,700 new cases of the virus have been detected during the most recent wave starting in May, but just 72 of the confirmed cases were reported in people who were known to have been infected previously – that is, less than 1% of the new cases. Roughly 40% of new cases – or more than 3,000 patients – involved people who had been infected despite being vaccinated. By contrast, Israelis who were vaccinated were 6.72 times more likely to get infected after the shot than after natural infection, with over 3,000 of the 5,193,499, or 0.0578%, of Israelis who were vaccinated getting infected in the latest wave.
https://sharylattkisson.com/2021/08...cine-induced-immunity-the-definitive-summary/