The Pfizer coronavirus vaccine may stop people passing on the virus to others, according to new research.
Scientists already knew the vaccine stopped those who had the jab having the most serious symptoms of the virus, but it was unclear if they could still pass it on to others.
In a huge boost, an expert in Israel says that once people have both injections they should stop being able to transmit Covid-19.
Professor Gili Regev-Yohai, director of Sheba’s Infectious Disease Epidemiology Unit, has released early findings of her research at the Sheba Medical Center in Tel Hashomer, the Jerusalem Post reports.
The lower viral load after having the two-dose vaccine will mean they shed fewer viral particles from their mouth and nose and therefore they are less infectious.
She added that those inoculated are less like to spread it further because they have high level of antibodies.
Research showed people given the Pfizer Covid vaccine have up to 20 times more antibodies than people who have had Covid and recovered.
Professor Regev-Yochay said: "The results of the survey are in line with Pfizer’s experiment and even better than expected.
“I expect that the survey results of the other employees participating will be similar.
"There is certainly reason for optimism.”
Trials of the Pfize jab showed it was 95 per cent effective at stopping people becoming ill with Covid-19 if they get infected, after two doses are given.
Four million people have been given at least one dose of either the Pfizer or Oxford vaccine so far in the UK.
