APR 15, 2021 7:00 AM PDT

COVID Vaccines Protect Breastfeeding Babies Too

WRITTEN BY: Tara Fernandes

Good news for families of newborns: A new study shows that breastfeeding mothers who receive a COVID vaccine share protective antibodies with their babies via breast milk for at least three months after the shot.

“Our study showed a huge boost in antibodies against the COVID-19 virus in breast milk starting two weeks after the first shot, and this response was sustained for the course of our study, which was almost three months long,” said study author Jeannie Kelly from Washington University in St. Louis.

According to Kelly, at the end of the study, antibody levels were still high, indicating that the protection likely extends for even longer.

The pilot study included a cohort of five breastfeeding mothers who received both doses of the Pfizer-BioNTech COVID-19 vaccine. The women provided weekly frozen breast milk samples from before they got vaccinated, to 80 days after the shot. The researchers analyzed the samples for the presence of immunoglobulins IgA and IgG, antibodies in breast milk that are known to coat the babies’ mouths and throats, protecting them from infections.

Kelly and team found that IgA and IgGs in breast milk spiked immediately after the first vaccine shot and continued to rise to immune-significant levels in around two weeks after the first vaccination in all the study participants.

“Our study is limited by a small number of participants, but the findings provide encouraging news about the potential immune benefit to breastfeeding infants after vaccination,” commented senior author Misty Good.

“Our paper is the first that has shown COVID-19 antibodies persist in breast milk for months following the mother’s vaccination.”

Kelly says that a growing amount of evidence in the field is helping physicians provide new mothers with data-driven advice on how to protect themselves and their babies during the pandemic.

“This is information we didn’t have a few months ago and it’s really helping us better counsel our patients who are considering getting the vaccine. I’m telling my pregnant and breastfeeding moms that I strongly recommend that they get vaccinated as soon as possible.”

 

 

Sources: Washington University in St. Louis, American Journal of Obstetrics and Gynecology.


 

About the Author
PhD
Interested in health technology and innovation.
You May Also Like
AUG 31, 2022
Immunology
Some Immune Cells Have a Taste for Sugar
AUG 31, 2022
Some Immune Cells Have a Taste for Sugar
T cells help us fight pathogens, and there are many kinds. New research has shown that a type of T cell that stays in th ...
SEP 13, 2022
Immunology
How Cell 'Waste' Boosts Immune Cells' Fight Against Cancer
SEP 13, 2022
How Cell 'Waste' Boosts Immune Cells' Fight Against Cancer
It seems there is a lot more to lactate than we knew.
SEP 07, 2022
Drug Discovery & Development
An Oral Insulin Pill is Getting Closer
SEP 07, 2022
An Oral Insulin Pill is Getting Closer
Diabetes is a chronic disease that requires constant monitoring. Patients have to check the level of sugar, or glucose i ...
OCT 12, 2022
Plants & Animals
Mediterranean Diet Improves Immunotherapy Response in Advanced Melanoma Patients
OCT 12, 2022
Mediterranean Diet Improves Immunotherapy Response in Advanced Melanoma Patients
The Mediterranean diet has been popularized in recent years for its wide-ranging health benefits. Among the many health ...
NOV 20, 2022
Immunology
Mouth Ulcer as First Sign of Monkeypox Infection
NOV 20, 2022
Mouth Ulcer as First Sign of Monkeypox Infection
German scientists provided a case study of a 51-year-old patient that highlighted one of the first symptoms a monkeypox- ...
NOV 28, 2022
Microbiology
A Vaccine to Prevent Urinary Tract Infections is in Development
NOV 28, 2022
A Vaccine to Prevent Urinary Tract Infections is in Development
New research has shown that a vaccine for the bacteria commonly associated with urinary tract infections works in animal ...
Loading Comments...