Remoteness influences access to sexual partners and drives patterns of viral sexually transmitted infection prevalence among nomadic pastoralists.

How much does differential homophily account for the distribution of HSV-2 and is there an epidemiologically relevant relationship between sexual homophily and geographic remoteness? Is there a relationship between the proportion of an individual’s homophilous contacts and their likelihood of having been exposed to HSV-2? Using a univariate logistic regression model, we found a mildly significant relationship between individuals’ proportion of homophilous sexual partners and having HSV-2 (OR = 1.8; 95% CI: 1.04–3.13; p = 0.04).

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This weakly significant result indicates that, while high degrees of homophilous partnering accounts for some of the HSV-2 risk in Kaokoveld, other factors may be important as well.

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