[SpamCop-Social] Re: The irony....

[Antoine J. Mechelynck]

"Redstone" <redford_stone at INVERSE_OF_COLDmail.com> a écrit dans le
message de news: 3E5B7C0B.62945601 at INVERSE_OF_COLDmail.com
[...]
> It is interesting to note that Blood type-A people can accept nearly
> anything from people of Blood type-O people.. but not vice versa.
> Someone was obviously confused.
[...]

I learnt that some decades ago. A and B can't give to each other. O can give
to anybody (but not vice-versa) because it has no "markers" (antigenes). AB
can receive from all others (but not vice-versa) because it already has all
the markers. Rh- can give to Rh+ but not vice-versa; however it may work the
first time because the antibodies aren't there yet, and by the time it takes
to make them, the antigene will have disappeared. All that makes O-
"universal donor" and AB+ "universal receiver". It's an almost algebraic
thing.

But that's for blood. I hear there are tissue groups too, but I never learnt
the details of that.

Tony.