You have no way of knowing that, and your percentage is based purely on opinion.
A nursing mother’s breast milk is composed of many things, including anything she is exposed to.
Given how sensitive an infant is to whatever comes his/her way, it is certainly possible the “vaccinated” breast milk may have poisoned her baby.
Granted it’s difficult to prove given all of the lies and dishonesty from our “medical professionals” and “academic researchers” these days, it’s certainly possible.
I am sorry for the OP’s loss, and am hopeful she and her husband were not poisoned by this “vaccine” as so many others have been.
Original poster said her husband took the Vax, not that she did.
How likely is it that her husband getting vaxxed caused her breast milk to be contaminated ?
Not saying it is impossible, but can you agree it is close to 0% ?