Tick-Typhus and Other Sporadic Fevers of the Typhus Group

The Typhus Group of Fevers

" typhus-like fever" occurring under such conditions are often very puzzling, and this paper is an attempt to throw some light on the miscellaneous fevers of this group. In articles in the Indian Medical Gazette in January 1917 (1) and October 1921 (2) I brought forward evidence which suggested that typhus-like fevers, such as those described by McKechnie in the Kumaon Hills, by McNaught in Sou...

The Immunological Problems of the Typhus Fever Group as Raised by a Sporadic Case of Typhus (Vector Unknown) from Hamirpur in the Plains of India with a Note on the History of Tick Typhus in India

Rickettsial diseases: the typhus group of fevers--a review.

Epidemic louse borne typhus has historically caused massive mortality in the wake of war, famine, and great migrations. In the four years from 1918 in Eastern Europe and Russia there were up to 30 million cases, and three million deaths. In the recent past in Burundi typhus has infected prison inmates before spreading to the wider community. It remains a risk among refugee populations in all pa...

A Note on Fevers of the Typhus Group in Assam

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 laborat...

Characterization of mutations in the rpoB gene in naturally rifampin-resistant Rickettsia species.

Rickettsiae are gram-negative, obligately intracellular bacteria responsible for arthropod-borne spotted fevers and typhus. Experimental studies have delineated a cluster of naturally rifampin-resistant spotted fever group species. We sequenced the 4, 122- to 4,125-bp RNA polymerase beta-subunit-encoding gene (rpoB) from typhus and spotted fever group representatives and obtained partial sequen...