Pfizer vaccine may prevent transmission of coronavirus to others, Israeli study suggests
The study was the first to suggest a Covid-19 vaccine could stop transmission - AP
According to the author of an Israeli study, Pfizer vaccine recipients are unlikely to pass the virus on to others.
Survey participants developed up to 20 times more antibodies within one week of receiving the second dose of the Pfizer / BioNTech vaccine.
The survey, which reviewed data from 102 of approximately 1,000 Sheba Medical Center medical workers who received both recordings, found that only two subjects developed low levels of antibodies - one of the subjects suffered from a weakened immune system.
There was no explanation as to why the second person did not develop antibodies, and the hospital said it was investigating.
The rest - 98 percent - have developed antibody levels even higher than those seen in patients who have recovered from a severe coronavirus-induced condition, the hospital said in a statement released Monday.
Professor Gili Regev-Yohai, director of the Department of Epidemiology of Infectious Diseases at Sheba, said people who received both doses of the vaccine most likely do not become carriers of the virus and because of the high levels of antibodies they received, they will not will continue to spread.
This is the first indication that a Covid-19 vaccine can stop transmission.
By Monday, the hospital had vaccinated around 80 percent of its employees with the first dose - a total of 7,106 people - and 4,484 with the booster shot.
"The survey results are consistent with Pfizer's experiment and have even exceeded expectations," said Prof. Regev-Yohai.
While people who have been sick and recovered are not yet eligible for the Pfizer vaccine in Israel, it is possible that they could be vaccinated in a second phase, at least with the booster shot, if further research shows the vaccine has improved immunity causes. She said.
It is one of the first studies conducted outside of Pfizer's own study of the vaccine's effectiveness.
Israel leads the world in vaccination per capita after topping the two million mark over the weekend.
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