| natural echinococcus multilocularis infection in a norway rat, rattus norvegicus, in southern hokkaido, japan. | forty-two rats, rattus norvegicus, captured at a garbage dump in southern hokkaido, japan, were examined, and one was found to be infected with echinococcus multilocularis. the lesions were found in the liver, lung, mesenteric lymph nodes, greater omentum and also free in the abdominal cavity. no necrosis was observed in any of the lesions, and inflammatory reactions were mild. protoscoleces were observed in the large liver cysts. a homogenate of these cysts, when transplanted into the abdominal ... | 1992 | 1399254 |