Immunological Determine whether ab to bacterial product are protective in infected animals Possible problem Ab to bacterial surface molecules might prevent infection by opsonizing or enhancing complement action rather than inactivating virulence factor BIOL 533 Lecture threeBIOL 533 11 Lecture Three Immunological • Determine whether Ab to bacterial product are protective in infected animals • Possible problem: – Ab to bacterial surface molecules might prevent infection by opsonizing or enhancing complement action rather than inactivating virulence factor