A Note on Fevers of the Typhus Group in Assam
نویسندگان
چکیده
While carrying out routine Widal tests at the Pasteur Institute Laboratory, Shillong, we met from time to time with specimens from patients in Assam whose history suggested enteric fever, but whose serum gave Widal reactions not in the least indicative of that disease, even when repeated two or three times at weekly intervals. Whilst this, of course, is a common enough experience in any laboratory, it seemed unlikely that failure to produce agglutinins against the enteric group of organisms could entirely account for all the cases of this nature, and in considering other possibilities we noted that the WilsonWeil-Felix test was rarely, if eVer, requested; in fact on only one occasion between 1930 and 1939 was this test asked for. It seemed worth while therefore trying to find out whether some of these cases of ' P. U. 0.' might in fact be cases of typhus fever. With this end in view the present investigation was undertaken. During the course of the investigation, from May 1940 up to date, 203 tests were carried out and the Wilson-Weil-Felix test was considered definitely diagnostic of typhus fever in 17 cases. Of these 17, 8 fell under the head of scrub typhus, 6 probably murine and 3 tick. In none was the Widal in any way suggestive of the enteric group of fevers. From the geographical point of view the cases can be classified as follows :?
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