This Rh-null blood type is highly autoimmune?
https://www.chinadaily.com.cn/a/202302/10/WS63e595c6a31057c47ebadfdc.html
One claim:
“This Rh-null blood type is highly autoimmune, which means carriers of the type have higher immunity and can provide more effective blood transfusions in an emergency.”
Do any of you have more information on that?