University of massachusetts amherst, Public land grant university in Amherst, Massachusetts

New York, Jan 9 Women vaccinated against Covid-19 transfer SARS-CoV-2 antibodies to their breastfed infants, potentially giving their babies passive immunity against the coronavirus, according to a new research that encourages lactating women to continue breastfeeding after they receive the vaccine.The study, published in the journal Obstetrics & Gynecology, measured the immune response to the Covid-19 mRNA vaccine in both breast milk and the stools of breastfed infants."This research is the first to detect SARS-CoV-2 antibodies in stool samples from infants of vaccinated mothers," said lead author Vignesh Narayanaswamy, research student at University of Massachusetts Amherst."This is really important because women want to know whether their babies have these antibodies, and our study shows that antibodies are being transferred via breast milk. Providing this compelling evidence is motivation for women to continue breastfeeding after they receive the vaccine," he added.Further, the study showed that the antibodies were detected in infants regardless of age - from 1.5 months old to 23 months old.Thirty lactating women from across the US most of them healthcare workers were enrolled in the study. They received the Covid-19 mRNA vaccine between January and April 2021.The women provided breast milk samples before they were vaccinated, across two to three weeks after their first vaccine dose and across three weeks after the second dose. They also gave samples of their blood, spotted on cards, 19 days after the first dose and 21 days after the second dose. Infant stool samples were collected 21 days after the mothers' second vaccination. Pre-pandemic samples of breast milk, dried blood spots and infant stools were used as controls for the study.The samples were tested for receptor-binding domain (RBD)-specific immunoglobulin (Ig)A and IgG antibodies. In the breast milk samples, anti-RBD IgG antibodies were found to neutralise the protein spike of SARS-CoV-2, as well as four variants. A significant increase in cytokine levels also revealed the immune response in breast milk samples.Anti-RBD IgG and anti-RBD IgA antibodies were detected in 33 per cent and 30 per cent of infant stool samples, respectively. The levels of antibodies correlated with the vaccine side effects the mother experienced."Women who did feel sick from the vaccine were associated with greater antibodies in the infant stool," said Kathleen Arcaro, Professor of environmental toxicology in the Department of Veterinary and Animal Sciences."So you might have felt badly, but that was a benefit for your infant," Arcaro said.Disclaimer: This post has been auto-published from an agency feed without any modifications to the text and has not been reviewed by an editor

University Of Massachusetts AmherstFOLLOW

University of massachusetts amherst, Latest News

Nuno Loureiro, an MIT professor who was shot at his residence in Massachusetts, US has died on Tuesday, December ... ...

Rick Slayman, the world’s first living recipient of a genetically edited pig kidney transplant, was discharged from the hospital ... ...

Around 100 million years ago, a group of land-dwelling turtles took to the oceans, eventually evolving into the sea ... ...

According to new research, specific physical characteristics of flowers impact the health of bumble bees by influencing the spread ... ...

A new study suggests that oil formulations with food-grade organic acids can kill dried Salmonella on stainless steel surfaces. ...

New York, April 1 Next time you order a pizza or whip up a creamy risotto, go ahead ... ...

The analysis led by the University of Massachusetts Amherst discovered that taking more steps a day helps lower the risk of premature death. ...

New York, Jan 9 Women vaccinated against Covid-19 transfer SARS-CoV-2 antibodies to their breastfed infants, potentially giving their ... ...