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Originally Posted by C4 Diesel
A little off... Medical progress doesn't change natural selection in the sense of it changes the selection criteria... It DOES AWAY with selection criteria, which stops natural selection and thus the gene pool would not change under those circumstances.
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I don't understand. If people who would ordinarily die from disease before they are able to reproduce are now kept alive to reproduce won't they pass their weaker immune systems etc..on to the next generation? As an example if we save the half million children listed below with early medical treatment won't they pass on their weaker genes?
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The average mortality rate for children under 5 years of age in Latin America and the Caribbean region was 39 per 1000 live births in 1998, thus, the number of dead children was close to half a million.
Acute respiratory infections, such as influenza and pneumonia, are the cause of one third of all deaths among children under 5 in the region; close to 60% of pediatric consultations are related to them and most of the resulting deaths can be prevented by a timely diagnosis and adequate treatment.
http://www.newhumanist.com/ibero.html
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