The study showed that after vaccination at this stage of pregnancy, newborns had more antibodies than those whose mothers had vaccinated earlier or later during pregnancy.
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The study was performed on 171 pregnant women, whose average age was 31 years. They were divided into two groups, the first being vaccinated between 27 and 31 weeks of gestation, the second between 32 and 36 weeks.
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It turned out that women vaccinated at a later stage had babies with an antibody level 40 percent lower than the newborns of the second group of mothers. In addition, in the group of pregnant women vaccinated between the 27th and 31st week, the children had twice as many antibodies as the mothers alone. In the second group, the levels of antibodies in newborns and mothers did not differ.
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The study was published in the journal Clinical Microbiology and Infection. “We believe that the placenta is able to filter and select only the most effective antibodies needed to neutralize the virus. We observed it on the type of antibodies and in the tests of the force of neutralization, “said one of the leading authors of the study, Amichaj Rottenstreich.
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Vaccination of children aged five to 11 has been approved in Israel and vaccination is about to begin. In the clinical trials stage, the vaccines are intended for children from six months to four years of age.
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