Figure 1.

¹H-NMR spectrum of identified metabolites in cervicovaginal fluid (CVF) and sterile swab at 400 MHz and 294 K. Due to the presence of other additional metabolite peaks at the δ = 3.2 ppm and 3.9 ppm region, the glucose signal at δ = 5.2 ppm was integrated and used in subsequent analysis. BCAA, Branched chain amino acids (leucine, isoleucine, and valine) (δ = 0.9–1.2 ppm), ppm, parts per million.