Seroprevalence of Toxoplasma gondii in White-Tailed Deer (Odocoileus virginianus) and Free-Roaming Cats (Felis catus) Across a Suburban to Urban Gradient in Northeaste

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• 作者：Gregory A. Ballash ; J. P. Dubey ; O. C. H. Kwok ; Abigail B. Shoben…
• 关键词：seroprevalence ; Toxoplasma gondii ; white ; tailed deer ; free ; roaming cats ; urbanization
• 刊名：EcoHealth
• 出版年：2015
• 出版时间：June 2015
• 年：2015
• 卷：12
• 期：2
• 页码：359-367
• 全文大小：688 KB
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• 作者单位：Gregory A. Ballash (1)
  J. P. Dubey (2)
  O. C. H. Kwok (2)
  Abigail B. Shoben (3)
  Terry L. Robison (4)
  Tom J. Kraft (4)
  Patricia M. Dennis (1) (5)
  
  1. Department of Veterinary Preventive Medicine, Ohio State University, 1920 Coffey Rd., Columbus, OH, 43210, USA
  2. Animal Parasitic Diseases Laboratory, Beltsville Agricultural Research Center, United States Department of Agriculture, Agricultural Research Service, Building 1001, Beltsville, MD, 20705-2350, USA
  3. Division of Biostatistics, College of Public Health, Ohio State University, 1841 Neil Avenue, Columbus, OH, 43210, USA
  4. Department of Planning, Design, and Natural Resources, Cleveland Metroparks, 4500 Valley Parkway, Fairview Park, OH, 44126, USA
  5. Sarah Allison Steffee Center for Zoological Medicine, Cleveland Metroparks Zoo, 4200 Wildlife Way, Cleveland, OH, 44109, USA
  
• 刊物类别：Earth and Environmental Science
• 刊物主题：Environment
  Environment
  Public Health
  Environmental Medicine/Environmental Psychology
  Ecosystems
  Environmental Management
  Microbiology
  
• 出版者：Springer New York
• ISSN：1612-9210

文摘

Felids serve as the definitive host of Toxoplasma gondii contaminating environments with oocysts. White-tailed deer (WTD; Odocoileus virginianus) are used as sentinel species for contaminated environments as well as a potential source for human foodborne infection with T. gondii. Here we determine the seroprevalence of T. gondii in a WTD and felid population, and examine those risk factors that increase exposure to the parasite. Serum samples from 444 WTD and 200 free-roaming cats (Felis catus) from urban and suburban reservations were tested for T. gondii antibodies using the modified agglutination test (MAT, cut-off 1:25). Antibodies to T. gondii were found in 261 (58.8%) of 444 WTD, with 164 (66.1%) of 248 from urban and 97 (49.5%) of 196 from suburban regions. Significant risk factors for seroprevalence included increasing age (P < 0.0001), reservation type (P < 0.0001), and household densities within reservation (P < 0.0001). Antibodies to T. gondii were found in 103 (51.5%) of 200 cats, with seroprevalences of 79 (51%) of 155 and 24 (53.3%) of 45 from areas surrounding urban and suburban reservations, respectively. Seroprevalence did not differ by age, gender, or reservation among the cats-sample. Results indicate WTD are exposed by horizontal transmission, and this occurs more frequently in urban environments. The difference between urban and suburban cat densities is the most likely the reason for an increased seroprevalence in urban WTD. These data have public health implications for individuals living near or visiting urban areas where outdoor cats are abundant as well as those individuals who may consume WTD venison. Keywords seroprevalence Toxoplasma gondii white-tailed deer free-roaming cats urbanization