Infectious diseases have exerted enormous selective pressures on our species.

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Infectious diseases have been a major selective pressure on humans throughout our evolutionary history. Those individuals with genetic factors that conferred resistance or immunity to certain diseases were more likely to survive and pass on their genes, leading to the evolution of populations with greater resistance to certain pathogens. Additionally, factors such as culture, sanitation, and medical advancements have played a role in reducing the impact of infectious diseases on human populations.

Infectious Diseases Have Exerted Enormous Selective Pressures on Our Species