Abstract
This opinion piece focuses upon the risk of HIV infection among men who have sex with men (MSM) and the reliance upon the respondent-driven sampling (RDS) method as the global epidemiological evidence base for HIV-related surveillance and research among MSM. It states that although the RDS method is a promising sampling methodology it questions the validity of important RDS study outcomes in the MSM population. It concludes that currently there is considerable bias in HIV-related RDS studies among MSM which results in an underestimation of the proportion of the population with high partner numbers and provides recommendations to improve this issue.
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