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Shifotoka and Fogarty recently suggested that human sex ratio (proportion of male to female offspring) at birth is lower in populations with higher prevalence of HIV/AIDS and tuberculosis.1 Although we agree with these findings, we would like to add further important details to these conclusions.
It is well known that Native African populations produce significantly more female offspring compared with Europeans and Americans.2 This trend is so striking that sex ratio at birth (SRB, defined as …
Contributors MSD conducted all the steps involved in the publication of this article.
Competing interests None.
Provenance and peer review Not commissioned; internally peer reviewed.
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