| Abstract: | Immune and non-immune mesenteric lymph node and Peyer's patch cells were labelled in vitro with 51Cr and injected intravenously into infected and non-infected syngeneic guinea-pigs (Heston strain). From the distribution of the radioactive label in the small intestine (the site of infection of T. colubriformis) it was concluded that immune lymphocytes: (1) preferentially localize or `home in' on the infection, (2) come into intimate contact with the parasite in the epithelium, and (3) rapidly undergo `allergic death' or lysis at the site of infection. |
