No Covid 19 Transmission Through Breast Milk

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A lot of research has come out regarding Covid 19 and more studies are coming out every other day. A recent study with respect to Covid 19 and breast Milk has revealed that there is no evidence of infected mothers transmitting SARS-CoV-2 through breast milk to their babies.

The study was published in the journal Pediatric Research. In the study, the researchers from the University of California claim that whilst a low proportion of breast milk contained COVID-19 genetic material, this did not translate into the presence of infectious replicating viral particles or lead to evidence of clinical infection with SARS-CoV-2 in breastfeeding infants.


They analysed breast milk samples from 110 lactating women who donated to the Mommy’s Milk Human Milk Biorepository at the University of California, San Diego between March and September 2020. Of the mothers, 65 had a positive COVID-19 test, while nine had symptoms but tested negative, and 36 were symptomatic.

Lead author Paul Krogstad and colleagues found SARS-CoV-2 genetic material (RNA) in the breast milk of seven women (6 per cent) with either confirmed infection or who reported being symptomatic. A second breast milk sample taken from these same women between one and 97 days later did not contain any SARS-CoV-2 RNA. They said that they also did not come across any infectious SARS-CoV-2 genetic material known as SgRNA, which is an indicator of virus replication, in the seven breast milk samples. There was no clinical evidence of infection in the infants who were breastfed by the seven mothers with SARS-CoV-2 RNA in their milk.

Despite the study, the authors said that the sample size was low in this study and may not capture all the potential factors that predict the presence of SARS-CoV-2 RNA in breast milk. However, they claimed that the study was one of the largest at this time to analyse breast milk and provides evidence that breastfeeding from women proven or suspected to have had SARS-CoV-2 infection does not lead to COVID-19 infection in their infants.

Paul Krogstad, said: “Breastmilk is an invaluable source of nutrition to infants. In our study, we found no evidence that breast milk from mothers infected with COVID-19 contained infectious genetic material and no clinical evidence was found to suggest the infants got infected, which suggests breastfeeding is not likely to be a hazard.” The authors conclude that their study adds to the evidence that women who are infected with COVID-19 and are breastfeeding their child have no risk of transmitting the virus through their breast milk.



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