Austrailia has about 300,000 births a year, or 20 million in the last 60 years.
Seems unlikely that austrailia would have a 5% miscarriage rate if he hadn't donated blood. With risk that high it's something you'd expect to know about widely, with at least 1 in 50 mothers receiving the injection
Rh disease is taught about in high school, and is one of the first things doctors check for. If a woman is of type negative blood, then she will likely have been told as a young girl that her children may be at risk depending on the father.
I guess what I’m saying is — rh disease is probably the most widely known and treated complication of pregnancy
Seems unlikely that austrailia would have a 5% miscarriage rate if he hadn't donated blood. With risk that high it's something you'd expect to know about widely, with at least 1 in 50 mothers receiving the injection