Superimposed confocal laser scanning microscopy images with 400x magnification of <i>Gardnerella vaginalis</i> biofilm, in three vaginal samples: vaginal epithelial cells DAPI in blue and <i>G</i>. <i>vaginalis</i> specific PNA-probe Gard162 with Alexa Fluor 647 in red.

<p>2A shows an example of dispersed-only <i>G</i>. <i>vaginalis</i> (negative for biofilm), 2B shows a light <i>G</i>. <i>vaginalis</i> biofilm (a small number of bacteria are adhering to the vaginal epithelial cells) and 2C is an example of a heavy <i>G</i>. <i>vaginalis</i> biofilm (the vaginal epithelial cells are covered by bacteria).