Is this surprising? A lot of medicines pass to breast milk and are not recommended n that cases. I'm not sure if someone has tried with mRNA before.
> This study investigated whether the COVID-19 vaccine mRNA can be detected in the expressed breast milk (EBM) of lactating individuals receiving the vaccination within 6 months after delivery.
Perhaps my English is bad, but IIUC the abstract makes the question if there is mRNA from the vaccine after 6 months, but it does not answer it. I can't find a good article about that https://www.google.com/search?q=mrna+vaccine+degradation+rat... but my guess is a few days. I'll be very surprised it survives a month inside the body.
> This study investigated whether the COVID-19 vaccine mRNA can be detected in the expressed breast milk (EBM) of lactating individuals receiving the vaccination within 6 months after delivery.
Perhaps my English is bad, but IIUC the abstract makes the question if there is mRNA from the vaccine after 6 months, but it does not answer it. I can't find a good article about that https://www.google.com/search?q=mrna+vaccine+degradation+rat... but my guess is a few days. I'll be very surprised it survives a month inside the body.