Figure 2.

Detection of serum sensitivity of N. gonorrohoeae by enumeration of CFU versus ATP. N. gonorrhoeae strains P9-17, MS11 and FA1090 were tested for sensitivity to serum from 10 healthy human donors and samples taken to detect bacterial ATP or CFU. Data are combined means + SD from three independent experiments. Statistically significant differences in sensitivity between the two methods were determined using multiple t-tests with the Holm–Šidák method applied. * p < 0.05; ** p < 0.01; *** p < 0.001.