However, among the 20 subjects who did use condoms there was also a marginally significant trend towards more vaginal E. coli (p = 0.06) and a highly significant increase in other enteric gram-negative rods (p = 0.001) after protected intercourse [ 106 ].
Nandwani et al and Tchamouroff and Panja reported on a prospective cohort study, including 256 heterosexual female patients, attending a genito-urinary medicine clinic, and found a highly significant difference in the rate of BV among women who reported receptive oral sex in the previous four weeks (41/111 or 37%) as compared to women who did not experience cunnilingus in the past four weeks (14/145 or 10%, p < 0.001) [ 67 , 68 ].