TICK-BORNE RICKETTSIAE OF THE SPOTTED FEVER GROUP IN WEST PAKISTAN

1 January 1973

journal article
Published by Oxford University Press (OUP) in American Journal of Epidemiology

Vol. 97 (1) , 55-64
https://doi.org/10.1093/oxfordjournals.aje.a121485

Abstract

Robertson, R. G., and C. L Wisseman, Jr. (Dept Microbiology, Univ. Md. Sch. Med., 660 W. Redwood St., Balto., Md. 21201). Tick-borne rickettsiae of the spotted fever group in West Pakistan. II. Serological classification of isolates from West Pakistan and Thailand: evidence for two new species. Am J Epidemiol 97: 55–64, 1973.—Thirteen spotted fever group rickettsial isolates from West Pakistan and one from Thailand were studied by means of the rickettsial toxin neutralization test in mice. It was found that one of the isolates from West Pakistan appeared to be a strain of Rickettsia conori, seven were strains of R. sibirica and five were strains of a heretofore unknown agent that is serologically distinct from other known spotted fever group rickettsiae. The isolate from Thailand was found to be serologically distinct from the isolates from West Pakistan as well as from other known spotted fever group rickettsiae.

Keywords

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