A small but groundbreaking study (available here) has been released at the Journal of the American Medical Association (JAMA) Pediatrics, demonstrating that trace amounts of COVID-19 vaccine mRNA were found in the breastmilk of lactating women as soon as one hour after vaccination.
This study was conducted from February to October 2020 (more on that in a moment), and included only 11 lactating women, 5 of whom received the Moderna vaccine and 6 of whom received the Pfizer vaccine. The comparison was made between their pre-vaccine breastmilk (the control) and post-vaccine breastmilk.
The results? The breastmilk of 5 out of 11 women tested had detectable COVID-19 vaccine mRNA in their breastmilk. For those keeping score, that is 45% – nearly half – of the study group.
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