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Breast milk contains coronavirus antibodies, study suggests

Mothers who have recovered from COVID-19 may have antibodies in their breast milk, The Scientist reports. Although there is no evidence that moms can transmit SARS-CoV-2 to infants during breastfeeding, it is unknown whether breast milk may pass on immunity to the virus. In a new study, researchers compared the breast milk of 15 lactating mothers who have recovered from COVID-19 with samples taken from other women before the pandemic. Breast milk from the previously infected women had antibodies that specifically bound to SARS-CoV-2, whereas the prepandemic samples only had low levels of nonspecific or cross-reactive activity, researchers report this month in iScience. The findings provide evidence that breastfeeding through the pandemic is safe, scientists say, and could potentially transmit protective antibodies to babies.

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