The influence of neighbourhood on STI (and more particularly Chlamydia) acquisition is widely recognized fact. Biello & Nikkolai argue for UK urban populations that neighbourhood socio-economic status (SES) is more closely correlated with Chlamydia risk than individual SES (http://sti.bmj.com/content/87/7/560.abstract?sid=88b6a7a5-11c9-472d-bd9a-39664d4142b7). In another UK study (Birmingham), Shahmanesh & Ross find residence in neighbourhoods having certain SES characteristics […]