منابع مشابه
Further Experiments in Typhus Fever
PRECISE INTERPRETATION OF OUR EXPERIMENTS SEEMS TO IMPOSE THE FOLLOWING CONCLUSIONS: Guinea pigs inoculated with washed Rickettsiae from Mexican typhus fever develop a disease identical with that resulting from inoculations with whole tunica scrapings, blood or other virulent material, and become thereby immunized to European typhus fever. The etiological agent of Mexican typhus fever is the Ri...
متن کاملFurther Studies on Typhus Fever
1. Guinea pigs can be actively immunized against European typhus fever with homologous formalinized Rickettsia tissue cultures, provided sufficient amounts are injected. The method is suggested for practical application in man. 2. Serovaccination against European typhus fever can be successfully applied to guinea pigs by a variety of methods, the simplest of which consists of the injection of m...
متن کاملStudies on Typhus Fever X. Further Expe]~iments on Active Immunization against Typhus Fever with Killed Rickettsia*
In a number of preceding communications, the writers have published the results of active immunization of guinea pigs with formalinkilled Rickettsiae obtained from the tunica lesions of guinea pigs infected with the Mexican virus. Such experiments showed that it was possible to obtain a considerable degree of active immunity against infection with the Mexican virus. Against the European virus t...
متن کاملTyphus Fever
The temperature at which tissue cultures infected with typhus Rickettsiae are incubated has been shown to exert a marked influence on the intracellular multiplication of Rickettsia prowazeki. At 41 degrees C. the organisms were not found in the cultures histologically on and after the 2nd day in vitro, and the cultures were non-virulent on and after the 3rd day in vitro, in spite of good preser...
متن کاملTyphus Fever in Bombay
32 3 8 106 235 Typhus From the beginning of June (1939) facilities for undertaking systematic laboratory investigation on cases of enteric fever became available and in consequence I have submitted every case of suspected enteric for close investigation. In cases where blood cultures and Widal tests proved negative, repeated tests were carried out on these cases for the typhus group and for und...
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ژورنال
عنوان ژورنال: Journal of Experimental Medicine
سال: 1930
ISSN: 1540-9538,0022-1007
DOI: 10.1084/jem.52.6.865