STUDIES ON THE TYPING OF ERYSIPELOTHRIX RHUSIORATHIAE : II. SEROLOGICAL BEHAVIOURS OF THE STRAINS ISOLATED FROM FOWLS INCLUDING THOSE FROM CATTLE AND HUMANS

Abstract

1. "Matsukawa" strain, the only avian strain isolated in Japan during the epizootic among ducks, was found to be serologically identical with a fish strain, "Sea bass-106", while all the swine strains showed no cross precipitation with it. 2. Out of the 17 avian strains received from the United States and Canada, 9 belonged to Group A, 5 to Group B and the remaining 3 possessed no specific antigenicity. 3. Out of the 9 strains isolated from the tonsils of healthy cattle by the authors, 4 belonged to Group B, 1 each to Groups C and D, and the other 2 showed no specific antigenicity. Also, the strain "601", isolated from a case of endocarditis by ROEMMELE of Germany, was identified as a Group B strain. 4. A human strain recovered from a case of erysipeloid was found to be a strain of of Group B. 5. An inference was made that the difference in the prevalence of fowl erysipelas in Japan and the United States and Canada might probably be due to the difference in the source of animal matter contained in the feed.