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Abstract

Gray foxes (Urocyon cinereoargenteus) were shown to be naturally infected with Bartonella rochalimae, a Bartonella species similar to Bartonella clarridgeiae (B.c.), and Bartonella vinsonii subspecies berkhoffii (B.v.berkhoffii) in northern California. A serological survey was performed to investigate the presence of Bartonella infection in 132 gray foxes from West/Central Texas. Using an immunofluorescence antibody test directed against B.v.berkhoffii and B.c., the antibody prevalence was 50% (66/132), with 22 (33.3%) individuals seropositive for B.c. only, 8 (12.2%) for B.v.berkhoffii, and 36 (54.5%) seroreactive for both B.c. and B.v.berkhoffii. The foxes had 3.63 more odds (95% confidence interval [CI]=1.38, 10.25) to be seropositive for B.c. than for B.v.berkhoffii. Female foxes were more likely to be seropositive for B.c. (odds ratio [OR]=2.90, 95% CI=1.33, 6.36) and also for both antigens (OR=2.50, 95% CI=1.06, 5.90) than males.

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Seroepidemiology of Bartonella Infection in Gray Foxes from Texas

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