Studies on sylvatic echinococcosis. II. The occurrence of Echinococcus multilocularis Leuck. 1863 in Manitoba

Cysts of Echinococcus multilocularis Leuck. 1863 were found in 15 of 99 deer mice, Peromyscus maniculatus (Wagner), from a dolomite quarry and a gravel pit 12 and 20 miles north northeast of Winnipeg respectively, in the Stony Mountain – Argyle area. This is the first report on the occurrence of E. multilocularis in Manitoba rodents. It extends northeast the known area of distribution of this cestode in the North American prairies.