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. 1999 Oct;67(10):5170–5175. doi: 10.1128/iai.67.10.5170-5175.1999

FIG. 2.

FIG. 2

Asymptotic pHs observed during growth of Lactobacillus spp. (○) in vitro correlate with normal vaginal pH regardless of the pHi of the growth medium. The asymptotic pHs observed during the growth of BV organisms (●) fall within the vaginal pH range seen in women with BV—these bacteria do not grow well, if at all, at a lower pHi. All points are means ± standard deviations. Error bars are not shown where the standard deviation is smaller than the symbol.