title: Detection of pathogenic Ehrlichia in ticks collected at acquisition sites of human ehrlichiosis in Missouri.
abstract: We collected 385 ticks from sites in Missouri associated with human monocytic ehrlichiosis. Using PCR, we detected E. chaffeensis or E. ewingii in 2 of 19 pools of adult Amblyomma americanum, 0 of 32 pools of Dermacentor variabilis, and 6 (18%) of 39 pools of unspeciated nymphal ticks from 3 of 6 sites associated with disease and one site not associated with disease. We also detected a variant of A. phagocytophila in one nymph pool.
authors.affiliation: Department of Pediatrics, Washington University School of Medicine, St. Louis, Missouri, USA.
authors.forename: Alex
authors.initials: A
authors.lastname: DeShields
authors.forename: Emily
authors.initials: E
authors.lastname: Borman-Shoap
authors.forename: James E
authors.initials: JE
authors.lastname: Peters
authors.forename: Monique
authors.initials: M
authors.lastname: Gaudreault-Keener
authors.forename: Max Q
authors.initials: MQ
authors.lastname: Arens
authors.forename: Gregory A
authors.initials: GA
authors.lastname: Storch
mesh_terms: D000818:Animals; D018469:Ehrlichia chaffeensis / Q000235:genetics / Q000302:isolation & purification* / Q000472:pathogenicity; D016873:Ehrlichiosis / Q000635:transmission*; D005260:Female; D006801:Humans; D008297:Male; D008923:Missouri; D016133:Polymerase Chain Reaction; D013987:Ticks / Q000382:microbiology*