Infectivity of Salmonella typhimurium for mice in relation to fimbriae.

摘要: When mice were inoculated orally with 100-104 cells of mouse-passage descendants Salmonella typhimurium derived from a carrier-dog feces, the large-intestinal descendant showed smallest ID<50> value and was followed by mesenteric lymph node, liver spleen. A giving smaller yielded large number colonies having hemagglutinating activity on blood agar plate. From colonies, 7 fimbriate 3 non-fimbriate selected. The 19 to 91% various degrees agglutination 8 kinds erythrocytes. destendants did not agglutinate given There tendency among that gave oral administration against (101-104 cells/mouse). capable infecting rarely 101-104 cells/mouse. On contrary, both almost same LD<50> intraperitoneal inoculation. statistical analysis value, it shown infectivity higher than isolated intestine. node in any other 50 77% cells.