Say you survived a certain disease,
Your body has created a set of anti bodies that hell with that certain disease, now, if you donate blood, will said antibodies help a person who has never contracted said disease?
(sorry for the poor english)
In: Biology
Works only in [plasma](https://en.wikipedia.org/wiki/Blood plasma) donations but not by regular blood transfusion I think. Or it’s more effective that way.
It’s used for many known diseases – [Here](https://www.grifolsplasma.com/en/plasma-donor/why-donate)
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