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Comparative Susceptibility of Different Populations of Amblyomma sculptum to Rickettsia rickettsii

28 May 2019

Abstract excerpt

The bacterium Rickettsia rickettsii is the etiological agent of Brazilian spotted fever (BSF), which is transmitted in Brazil mainly by the tick Amblyomma sculptum. Herein, larvae and nymphs of six populations of A. sculptum were exposed to R. rickettsii by feeding on needle-inoculated guinea pigs, and thereafter reared on uninfected guinea pigs or rabbits. Two tick populations were exposed to autochthone R....

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PMID: 31191350
DOI: 10.3389/fphys.2019.00653

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