enzootic transmission of babesia divergens among cottontail rabbits on nantucket island, massachusetts.specific ticks seem to locally serve as vector for characteristic microbial assemblages (guilds) comprising spirochetes, piroplasms, ehrlichiae, and arboviruses. borrelia andersoni and anaplasma phagocytophilum are intensely transmitted between cottontail rabbits. to test the hypothesis that a piroplasm may also be maintained in rabbits, we sampled these hosts from nantucket island, massachusetts and tested their blood and tissues by a polymerase chain reaction for evidence of infection. surpris ...200314695079
comparative infectivity of babesia divergens and a zoonotic babesia divergens-like parasite in cattle.babesia divergens-like parasites identified in human babesiosis cases in missouri and kentucky and in eastern cottontail rabbits (sylvilagus floridanus) on nantucket island, massachusetts, share identical small subunit ribosomal rna gene sequences. this sequence is 99.8% identical to that of babesia divergens, suggesting that the u.s. parasite may be b. divergens, a causative agent of human and bovine babesiosis in europe. holstein-friesian calves were inoculated with cultured nantucket island b ...200516282295
phylogenetic and biologic evidence that babesia divergens is not endemic in the united states.the causative agent of human babesiosis in a kentucky case, which was first identified as babesia divergens, is identical to a parasite of eastern cottontail rabbits on nantucket island, massachusetts based on piroplasm size, morphology, and ribosomal rna sequence analysis. studies showing differential infectivity for cattle, host erythrocyte specificity in vitro, parasite size and morphology in vitro, and ribosomal rna sequences clearly demonstrate that the parasite from the rabbit (conspecific ...200617135561
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