A medical study published in August in Israel has may undermine the need for vaccine passports in countries where it is currently a necessity.
According to Science, "The natural immune protection that develops after a SARS-CoV-2 infection offers considerably more of a shield against the Delta variant of the pandemic coronavirus than two doses of the Pfizer-BioNTech vaccine."
"The newly released data show people who once had a SARS-CoV-2 infection were much less likely than never-infected, vaccinated people to get Delta, develop symptoms from it, or become hospitalized with serious COVID-19," Science continued.
Following the growing trend of requiring proof of vaccination to carry about one's everyday life, Harvard Medical School professor Martin Kulldorff said that the research results means vaccine passports are both unscientific, as well as "discriminatory," as he says many working class people have yet to be vaccinated.
"Prior COVID disease (many working class) provides better immunity than vaccines (many professionals), so vaccine mandates are not only scientific nonsense, they are also discriminatory and unethical," Kulldorff, a biostatistician and epidemiologist, wrote on Twitter.
"Moreover, CDC research shows that vaccinated individuals still get infected with COVID-19 and carry just as much of the virus in their throat and nasal passage as unvaccinated individuals," wrote the Foundation for Economic Education.
"High viral loads suggest an increased risk of transmission and raised concern that, unlike with other variants, vaccinated people infected with Delta can transmit the virus," CDC Rochelle Director Walensky noted following an outbreak in Cape Cod of mostly vaccinated people.