hemocytic rickettsia-like organisms in ticks: serologic reactivity with antisera to ehrlichiae and detection of dna of agent of human granulocytic ehrlichiosis by pcr.ixodid ticks were collected from connecticut, massachusetts, missouri, pennsylvania, rhode island, and british columbia (canada) during 1991 to 1994 to determine the prevalence of infection with hemocytic (blood cell), rickettsia-like organisms. hemolymph obtained from these ticks was analyzed by direct and indirect fluorescent antibody (fa) staining methods with dog, horse, or human sera containing antibodies to ehrlichia canis, ehrlichia equi, or rickettsia rickettsii. of the 693 nymphal and a ...19958567911
ectoparasites and associated pathogens of free-roaming and captive animals in zoos of south carolina.a survey of ectoparasites and their associated pathogens was conducted in two south carolina zoos, from 2004 to 2007. dead, wild birds and mammals, as well as captive animals examined during routine veterinary checks constituted the study populations. ectoparasites were tested for species of anaplasma, bartonella, coxiella burnetii, ehrlichia, rickettsia, and trypanosoma. forty-six species of ectoparasites were collected from 133 free-roaming and captive hosts and their associated nesting and be ...200918973443
prevalence of the agent of human granulocytic ehrlichiosis in ixodes scapularis (acari: ixodidae) in the coastal southeastern united states.human granulocytic ehrlichiosis (hge) is an emerging tick-borne disease recently recognized in the united states. the blacklegged tick, ixodes scapularis say, is the principle vector in the eastern united states. the disease has been commonly reported in the northeastern and upper midwestern states; however, suitable vectors and reservoir hosts exist in the southeast. to assay the prevalence of the hge agent in vector ticks, we screened 818 individual i. scapularis from 15 locations in south car ...200211931023
use of recombinant antigens of borrelia burgdorferi and anaplasma phagocytophilum in enzyme-linked immunosorbent assays to detect antibodies in white-tailed deer.serum samples obtained from white-tailed deer (odocoileus virginianus) in connecticut (n=218) and south carolina (n=20) (usa) during the period 1992-2002 were analyzed for antibodies to whole-cell or recombinant antigens (i.e., fusion proteins) of borrelia burgdorferi sensu stricto and anaplasma phagocytophilum, etiologic agents of lyme borreliosis and granulocytic ehrlichiosis, respectively. in enzyme-linked immunosorbent assays (elisas) with whole-cell b. burgdorferi, the overall seropositivit ...200415362824
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