Coccidioides spp. exposure among military working dogs in endemic regions of the United States

Med Mycol. 2023 Nov 6;61(11):myad109. doi: 10.1093/mmy/myad109.

Abstract

Coccidioidomycosis is a fungal disease in arid regions of the United States that is predicted to expand with climate change. Cases in military personnel and military working dogs (MWDs) impact personnel readiness and result in healthcare costs. To examine Coccidioides exposure among MWDs, 276 banked serum samples were retrieved from dogs housed in California, Texas, Arizona, New Mexico, Nevada, and Utah. Using gel immunodiffusion, six (2.1%) specimens were IgG-positive and three (1.1%) were equivocally IgM-positive. The IgG-positive samples were from Arizona (2 [prevalence 8.0%]) and California (4 [3.7%]). These data will guide future efforts to study MWDs as sentinels for human coccidioidomycosis.

Keywords: canine; coccidiomycosis; military; military working dog; valley fever.

Plain language summary

This study aimed to determine the prevalence of exposure to coccidioidomycosis, the cause of Valley Fever in both humans and animals, among military working dogs (MWDs)located in endemic regions of the United States. The data will be used to guide efforts to study MWDs as sentinels for human disease.

MeSH terms

  • Animals
  • Arizona / epidemiology
  • Coccidioides*
  • Coccidioidomycosis* / epidemiology
  • Coccidioidomycosis* / microbiology
  • Coccidioidomycosis* / veterinary
  • Dogs
  • Humans
  • Immunoglobulin G
  • United States / epidemiology
  • Working Dogs

Substances

  • Immunoglobulin G