A vaginal pH exceeding a value of 4.5; The presence of so-called clue cells – vaginal epithelial ... As an alternative, Gram-stain-based microbiological diagnosis of BV has been proposed.

Using Gram stain diagnosis of bacterial vaginosis as ... Platz-Christensen et al 15 reported that detection of clue cells in Pap smears showed a sensitivity of 90% and a specificity of 97% when ...

Gram-positive bacteria have thick cell walls. A Gram stain test, which involves a chemical dye, stains the bacterium’s cell wall purple. On the other hand, gram-negative bacteria stain pink instead.

rapidly processing the 3D optical scattering information of bacterial cells to digitally stain label-free bacteria, matching the traditional Gram staining results. "Traditional Gram staining ...

THE direct observation of the site of Gram stain in cells of micro-organisms could not be attempted before the ultra-thin section technique became available. However, to obtain a suitable section ...