Japanese Journal of Veterinary Research;Volume 8, Number 1-4

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STUDIES ON ECHINOCOCCOSIS XI. : OBSERVATIONS ON SECONDARY ECHINOCOCCOSIS

YAMASHITA, Jiro;OHBAYASHI, Masashi;SAKAMOTO, Tsukasa

Permalink : http://hdl.handle.net/2115/4689
JaLCDOI : 10.14943/jjvr.8.1-4.315

Abstract

Secondary echinococcosis in Mongolian gerbils, dba and C57BL/6 mice caused by Echinococcus granulosus and E. multilocularis was investigated through intraperitoneal injection of scolices prepared from larval echinococcus tissue. The following conclusions were arrived at : 1) A part of scolices injected develop to echinococcus cyst about a month being needful for cyst formation. 2) In E. g. cases, some animals become affected by intraperitoneal inoculation of scolices irrespective of insusceptibility to oral administration of ova. In E. m. cases, however, a decline of susceptibility takes place in intraperitoneal cases. 3) As to a factor influencing the decline of susceptibility in intraperitoneal E. m. cases, the authors attached importance to a particularity of the histological structure of multilocular echinococcus.

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