American Society for Microbiology, Applied and Environmental Microbiology, 1(73), p. 334-336, 2007
DOI: 10.1128/aem.02009-06
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ABSTRACT Laboratory-reared and field-collected Amblyomma americanum ticks were hosts of a Coxiella sp. and a Rickettsia sp. While the Coxiella sp. was detected in 50 of 50 field-collected ticks, the Rickettsia sp. was absent from 32% of ticks. The Coxiella sp. showed evidence of a reduced genome and may be an obligate endosymbiont.