Immune serum inhibits VLY-mediated lysis of human cervical and vaginal cells.

<p>Human cervical (A, HeLa) or vaginal (B, VK2) epithelial cells were exposed to VLY (10 µg/ml), VLY+PB, or VLY+IS. Lysis was measured by LDH release assay following 30 min of incubation with toxin. Values were normalized to 100% lysis for each cell line (P<0.05 for VLY+IS versus VLY+PB for HeLa and VK2 cell lines).