The prevalence among men was 3.8 per cent and among women 5.1 per cent . There was also a high prevalence of sexually transmitted diseases : 51.1 per cent for herpes simplex virus 2 ( HSV-2 ) , 3.2 per cent for syphilis , 1.1 per cent for gonorrhoea , 6.8 per cent for chlamydia and 10.5 per cent for trichomoniasis .