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A member asked:
Is it possible for some people to be immune to poison ivy?
A doctor has provided 1 answer
Yes: While 60% to 80% of people become allergic to poison ivy and other rhus plants, that means 20-40% don't become allergic. It is not clear why this happens, but it most likely is related to "host factors" and potency of the antigen.
Answered 3/22/2019
5.3k views
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