cercarienhullenreaktion

cer·car·i·en·hul·len·re·ak·tion (sər-kar″e-ən-hul″ən-re-akґshən) a test for Schistosoma mansoni, utilized in measuring the efficiency of chemotherapy against schistosomiasis. When cercariae of S. mansoni are placed in vitro in contact with sera of monkeys or humans infected with S. mansoni, a transparent envelope is formed around each cercaria.