Epidemiology & Genetics Unit, Department of Health Sciences, Heslington, York, UK. Rob.newton@egu.york.ac.uk
In a case-control study nested within the EPIC-Oxford cohort, there were no statistically significant differences in the prevalence or titre of antibodies against BK virus measured in plasma taken prior to diagnosis between cases with cancer of the prostate (n=31), kidney (n=5) or bladder (n=9) and controls (n=45).