A team at Hadassah Medical Center in Jerusalem checked blood from the umbilical cords of 40 newborns, which is the same as the baby’s blood, and found that all had a strong supply of antibodies — just like their mothers who had been vaccinated with the Pfizer-BioNTech shots.
“This is an important finding that is reassuring, suggesting that vaccinated mothers pass Covid-19 protection to their babies before they are born,” Dana Wolf, head of Hadassah’s virology department said.
The babies in the study were born to mothers spanning a range of ages, who had all received their second vaccine shot at least a week earlier.
As we reported earlier, the scheduled gap between the first and second injections of CoviShield vaccine in Ukraine has been increased from 28 to 90 days.
The official explained that the analysis of clinical trials showed the vaccine's efficiency after the one-time standard dose made 76 percent. The level of anti-bodies remained almost the same during the period from 22nd to 90th day between the injections - with a minimal decrease.
When scientists upheld the strategy of immunization with a bigger gap between the injections, the efficiency of the vaccine grew to 81.3 percent after two standard doses, injected with a gap of 12 weeks or more.