newly acquired infection was independently associated with frequent prostitute contact ( risk ratio 3.2 , 95 % confidence interval 1.2-8.1 ) , with the acquisition of genital ulcer disease ( risk ratio 4.7 , 95 % confidence interval 1.3-17.0 ) , and with being uncircumcised ( risk ratio 8.2 , 95 % confidence interval 3.0-23.0 ) .
C0009450
infection
C0012634
disease