The effects of circumcision on the penis microbiome. "METHODOLOGY/PRINCIPAL FINDINGS: We assessed the penile (coronal sulci) microbiota in 12 HIV-negative Ugandan men before and after circumcision... ...Among the 42 unique bacterial families identified, Pseudomonadaceae and Oxalobactericeae were the most abundant irrespective of circumcision status. Circumcision was associated with a significant change in the overall microbiota (PerMANOVA p = 0.007) and with a significant decrease in putative anaerobic bacterial families (Wilcoxon Signed-Rank test p = 0.014).... ...[The] reduction in putative anaerobic bacteria after circumcision may play a role in protection from HIV and other sexually transmitted diseases."
Next they should sequence the micropenis microbiome. Thanks to Matt for today's ROFL!