1921
Volume 25, Issue 3
  • ISSN: 0002-9637
  • E-ISSN: 1476-1645
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Abstract

Abstract

A rickettsia of the spotted fever group was isolated on three occasions from in western Oregon. These isolations, and additional evidence furnished by complement fixation tests on guinea pigs inoculated with other Oregon ticks of this species, indicate that the association of this rickettsia with the Pacific Coast tick may be widespread. This is the first isolation of a spotted fever group rickettsia from . Because the Oregon isolates are mildly virulent for guinea pigs they resemble the Western U and strains of rickettsiae. However, preliminary evidence from cross-immunofluorescence tests of mouse antisera suggests the Tillamook and Grants Pass strains are antigenically different from all known spotted fever group agents.

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/content/journals/10.4269/ajtmh.1976.25.513
1976-05-01
2017-11-22
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http://instance.metastore.ingenta.com/content/journals/10.4269/ajtmh.1976.25.513
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  • Accepted : 20 Sep 1975

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