[jalisco555]

Thank you for posting this. As a pathologist I find this sort of thing fascinating. I remember reading once that if malaria had never existed the population of the world would be twice what it is today.

[allmendream]

Human evolution has also been shaped by malaria. The high incidence of sickle cell anemia in areas where malaria is endemic is best explained by the resistance a hetero-zygote for the sickle cell anemia gene has to malaria.

Where malaria is endemic many adults are hetero-zygotes for the trait. Traditionally their children would have a 25% chance of having sickle cell anemia and end up dying of anemia; a 25% chance of being homozygous for “normal” hemoglobin and end up dying of malaria; and a 50% chance of being heterozygous like their parents and being resistant to malaria and having no problems with anemia.

Quite a price to pay.

[SunkenCiv]

Egyptian Mummies Yield Earliest Evidence of Malaria
Discovery News | Thursday, October 23, 2008 | Rossella Lorenzi
Posted on 10/28/2008 8:03:16 PM PDT by SunkenCiv
http://www.freerepublic.com/focus/f-chat/2118171/posts

[SunkenCiv]

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