International
The Pfizer and Moderna vaccines are best for passing COVID-19 antibodies on through breastmilk, according to international research. Without a vaccine approved for infants, breastmilk of a vaccinated mother plays an important role in protecting newborns against COVID-19. With this in mind, researchers tested breastmilk samples from 124 lactating mothers before and after vaccination with Moderna, Pfizer, AstraZeneca or Johnsons & Johnson/Janssen to see how many were passing on their antibodies. The two mRNA vaccines came out on top, the researchers say, with the milk from 96 per cent and 97 per cent of Pfizer and Moderna recipients respectively testing positive for antibodies. Comparatively, 39 per cent of AstraZeneca recipients and 48 per cent of Johnson & Johnson recipients had antibodies detected in their milk, the researchers say. They add while it is still not indisputable that antibodies in breastmilk can provide protection against the virus, the mRNA vaccines are currently the best options for lactating mothers who want to provide some protection for their babies.
From:
What The Study Did: The antibody response in human milk was compared after vaccination with four different mRNA-based and vector-based vaccines for COVID-19 available in the Netherlands.
Authors: Johannes B. van Goudoever, M.D., Ph.D., of Emma Children’s Hospital in Amsterdam, is the corresponding author.
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