[Dumb_Ox]

[Sickle-cell anemia] is based on proximity to malarial areas. Thus there are Asian populations prone to it and African populations not.

Not to mention some Italian populations.

[tallhappy]

Not to mention some Italian populations.

Exactly.

If 10 to 20% of the US population happened to be from malarial regions of Bangladesh we would understandibly, but superficially, associate Sickle cell anemia with that ethnic or racial group.