Human Granulocytic Ehrlichiosis in Northern California: Two Case Descriptions with Genetic Analysis of the Ehrlichiae
Author(s) -
Janet E. Foley,
Leta CrawfordMiksza,
J. Stephen Dumler,
Carol Glaser,
JoonSeok Chae,
Elaine Yeh,
David Schnurr,
Ron Hood,
Willard Hunter,
John E. Madigan
Publication year - 1999
Publication title -
clinical infectious diseases
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.44
H-Index - 336
eISSN - 1537-6591
pISSN - 1058-4838
DOI - 10.1086/520220
Subject(s) - ehrlichiosis , myalgia , malaise , medicine , tick , virology , polymerase chain reaction , immunology , gene , biology , genetics
We report two cases of human granulocytic ehrlichiosis (HGE) that occurred in northern California in summer 1998. Patients had fever, malaise, and myalgia, reported tick bites, had moderate thrombocytopenia, and had normal or slightly elevated liver enzyme activities. Ehrlichial inclusions were observed in the blood of one patient, and HGE-agent DNA was amplified by PCR from both patients. Genetically, the strains resembled horse isolates from northern California. The close spatial and temporal proximity of the two new cases may be due to a nidus of infection in the area or heightened surveillance by local physicians.
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