FIG. 2.

Effect on retinal toxicity of neutralizing HBL and PC-PLC in crude B. cereus culture supernatant. Crude BHIG culture supernatant was added to retinal buttons (n = 5) in the presence or absence of polyclonal antibodies (purified IgG) to HBL component B and PC-PLC. CS, culture supernatant with no antibody; aB, CS with antibody to B; aPLC, CS with antibody to PC-PLC; aB/aPLC, CS with antibodies to PC-PLC and component B; Neg, negative control (BHIG). The retinal button toxicity assay was performed as described in Materials and Methods. Numbers above bars show percent inhibition (% I) relative to the antibody-free CS and negative control.