these activities are triggered by antibodies on the surface of the parasites as shown by : ( a ) binding of fluorescein or radiolabelled anti-mouse immunoglobulin to the parasite 's membrane and ( b ) the finding that bloodstream forms from lethally irradiated mice can be sensitized and rendered susceptible to complement-mediated lysis by incubation with sera from acutely infected animals .
C0009498
complement
C0229671
sera