Tue Aug 31, 2021 – 4:38 pm EDT
ISRAEL (LifeSiteNews) – A new study out of Israel on the efficiency of COVID vaccines compared to natural immunity has weakened the argument for vaccine passports, according to a Harvard University epidemiologist.
“Prior COVID disease (many working class) provides better immunity than vaccines (many professionals),” Harvard Medical School’s Professor Martin Kulldorff wrote on Twitter Friday, “so vaccine mandates are not only scientific nonsense, they are also discriminatory and unethical.”
He was commenting on a study published on August 24 by Israeli researchers who found that “natural immunity confers longer lasting and stronger protection against infection, symptomatic disease and hospitalization caused by the Delta variant of SARS-CoV-2” when compared to people who had received two doses of the Pfizer-BioNTech vaccine. It looked at over 670,000 individuals, both vaccinated and unvaccinated.
Various countries, including Israel, have implemented vaccine passport systems, under which people must prove they have been vaccinated against COVID-19 in order to access places such as restaurants, trains, and busses. American cities such as New York have also implemented such passport systems.
Kulldorff explained that “vaccinated individuals had 27 times higher risk of symptomatic COVID infection compared to
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