The host antigen phenomenon in experimental murine schistosomiasis. II. Failure to demonstrate destruction of parasites transferred from hamsters to mice.

Adult Schistosoma monsoni grown in hamsters and transferred directly to the mesenteric vessels of C57BL10J mice previously immunized with hamster cells survive normally despite evidence of cytoxic and hemagglutinating antibodies directed against hamster cells. This finding indicates that species differences may play an important part in the manifestions of the host antigen phenomenon in experimental schistosomiasis.