FIG. 3.

Vero cell cytotoxicity of kidney samples from mice receiving starved chlorine-treated E. coli O157:H7 (strain 43895 or FO46). Groups of four mice were orally fed (by gavage) culturable (C) or chlorine-induced nonculturable (HOCl) cells. Control animals received a 20% sucrose solution. All samples were run in triplicate and group data were pooled and expressed as percent live cells. ∗, the values for groups receiving culturable cells (43895 and FO46) were significantly different from those for the control group and the groups challenged with chlorine-treated cells (43895 and FO46).