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  • Title: Rabies risk and use of post-exposure prophylaxis associated with dog bites in Tennessee.
    Author: Henderson H, Carpenter LR, Dunn JR.
    Journal: Zoonoses Public Health; 2018 Jun; 65(4):425-430. PubMed ID: 29430859.
    Abstract:
    The canine variant of the rabies virus has been eliminated in the United States. Among the public and many healthcare providers, however, dog bites are still associated with risk for rabies transmission. This study examined the risk of rabies in biting dogs and the use of rabies post-exposure prophylaxis (rPEP) for dog bite victims in Tennessee. The study included a retrospective analysis of laboratory testing requisitions for dogs from 2002 to 2016, collection of clinical data on confirmed rabies-positive dogs from 2008 to 2016 and analysis of hospital discharge data for rPEP from 2007 to 2014. Among dogs submitted for rabies testing, those having a recent history of biting were significantly less likely to test positive for rabies than dogs with no reported bite (OR = 0.01; 95% CI [0.003-0.04]). The most common clinical signs reported among rabies-positive dogs were anorexia, dysphagia, ataxia, limb paresis or paralysis, and lethargy; aggressiveness was uncommon. Among hospital patients with an animal-related injury who received rPEP, more than half (52%) presented with dog bites. These data show that laboratory submissions for rabies testing and prescriptions for rPEP do not reflect the epidemiology of rabies in Tennessee. Education and outreach targeting the public and healthcare providers should emphasize the animal species and situations associated with a greater risk for rabies transmission, such as bites from rabies reservoir species or animals exhibiting signs of neurologic disease.
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