Publications

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genetic variants of ehrlichia phagocytophila, rhode island and connecticut.primers were used to amplify a 561-bp region of the 16s rrna gene of ehrlichia phagocytophila from ixodes scapularis ticks and small mammals collected in rhode island and connecticut. dna sequences for all 50 e. phagocytophila-positive samples collected from 1996 through 1998 in southwestern connecticut were identical to the sequence reported for e. phagocytophila dna from confirmed human cases. in contrast, the sequences from 92 of 123 e. phagocytophila-positive rhode island samples collected f ...200211996680
prospective study of coinfection in patients with erythema migrans.the frequency of coinfection with borrelia burgdorferi and either anaplasma phagocytophila or babesia microti among patients with erythema migrans, the initial skin lesion of lyme disease, was assessed in 2 mainland locations in rhode island and connecticut in a 4-year prospective study. of the 93 patients with culture-proven erythema migrans, 2 (2%) patients had coinfection with a. phagocytophila and 2 (2%) had coinfection with b. microti. we concluded that the frequency of coinfection with the ...200312684924
the ability of a topical novel combination of fipronil, amitraz and (s)-methoprene to protect dogs from borrelia burgdorferi and anaplasma phagocytophilum infections transmitted by ixodes scapularis.healthy, purpose-bred laboratory beagle dogs that had not been exposed to ticks and were seronegative for borrelia burgdorferi and anaplasma phagocytophilum were randomly assigned to four groups of eight dogs each. control group 1 was not treated. groups 2, 3 and 4 were treated with a single topical application of a new formulation of fipronil, amitraz and (s)-methoprene (certifectâ„¢, merial limited, ga, usa) at 28, 21 or 14 days prior to tick infestation, respectively. each dog was infested with ...201121777736
assessing the association between the geographic distribution of deer ticks and seropositivity rates to various tick-transmitted disease organisms in dogs.to determine whether the geographic distribution of deer ticks (ixodes scapularis) was associated with the distribution of dogs seropositive for various tick-transmitted disease organisms (ie, borrelia burgdorferi, rickettsia rickettsii, the human granulocytic ehrlichiosis [hge] agent, ehrlichia canis, and bartonella vinsonii subsp berkhoffii).200111318358
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
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