Japanese Journal of Zoo and Wildlife Medicine
Online ISSN : 2185-744X
Print ISSN : 1342-6133
ISSN-L : 1342-6133
Volume 18, Issue 2
Displaying 1-6 of 6 articles from this issue
Special articles
  • Daisuke FUKUI
    2013 Volume 18 Issue 2 Pages 41-48
    Published: June 01, 2013
    Released on J-STAGE: May 04, 2018
    JOURNAL FREE ACCESS

    ABSTRACT. Recently, infectious diseases of wildlife occurred in conjunction with anthropogenic activities become critical problem and are considered associated with relation between humans and wildlife. Humans feed wildlife for various purposes such as just fun, tourist attractions, and conservation, although wildlife can live without our intense supports. Feeding wildlife can cause increase in population density of specific species at feeding sites, led to negative impact on ecological health such as changes of their behavioral ecology and loss of biodiversity. In addition, it can increase potential risk of infectious diseases and actually the outbreak of feeding-related incidents were recognized; highly pathogenic avian influenza in Hooded cranes in Izumi, Kagoshima, 2010 salmonellosis in Eurasian tree sparrows in Asahikawa, Hokkaido, winter 2008 - 2009 and avian pox in crows in Hokkaido, Japan, since 2006, considered associated with feeding for conservation, bird table, and garbage, respectively. Moreover congregation of wildlife at feeding sites may increase contact opportunities among them, and with other species, livestock, and humans, which increase risks for disease spread and spillover. For ecological health supporting lives of humans, livestock, and wildlife, epidemiological studies and biosecurity countermeasures on infectious diseases associated with relation between humans and wildlife.

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  • Junji SHINDO
    2013 Volume 18 Issue 2 Pages 49-51
    Published: June 01, 2013
    Released on J-STAGE: May 04, 2018
    JOURNAL FREE ACCESS

    ABSTRACT. Controlling infection risks in handling injured wildlife is important. However,it is unclear how much contamination occurs to the fingers during handling of injured wild birds. In this study, we examined 46 birds of 17 species, which were rescued at the Aomori Wildlife Rehabilitation Center, and investigated contamination of fingers after each examination by using ATP bioluminescence.

     ATP bioluminescence values of the fingers increased from 1.6±1.0×102 RLU to 2.1±2.0×104 RLU after examination of injured wild birds. Especially, the ATP bioluminescence values increased after handling of traumatized and dysstatic birds (2.9±1.7×104 RLU), which were significantly higher than the values of uninjured birds (5.0±2.8 ×103 RLU). Note that the ATP bioluminescence values also differed by the ecology of species. It is therefore important to wear gloves during handling injured birds and wash hands afterward in order to lower the infection risk.

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  • Yasuko NEAGARI
    2013 Volume 18 Issue 2 Pages 53-59
    Published: June 01, 2013
    Released on J-STAGE: May 04, 2018
    JOURNAL FREE ACCESS

    ABSTRACT. Although there are various wildlife diseases that cause serious damage to wildlife, domestic animals, and/or human, human activities cause some of these wildlife diseases. Development of wildlife disease surveillance allows for early detection of diseases because wildlife serves as sentinels for health in all species. Since 2008, Ministry of the Environment has conducted the nation-wide surveillance of Highly Pathogenic Avian Influenza (HPAI) in wild birds cooperating with prefectural governments and universities. In spite of this surveillance system for the specific disease, there are no comprehensive surveillance systems for other wildlife disease problems. In this report, the current circumstances and challenges that surround wildlife diseases surveillance in Japan were reviewed referring other countries’ cases.

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  • Kei FUJII, Yuichi OSA
    2013 Volume 18 Issue 2 Pages 61-64
    Published: June 01, 2013
    Released on J-STAGE: May 04, 2018
    JOURNAL FREE ACCESS

    ABSTRACT. The authors have investigated Salmonella in wildlife in and around livestock farms in Hokkaido. The prevalence of Salmonella in wildlife including crows, ducks, raccoons and foxes and the characteristics of the isolates in our investigation suggest that there are epidemiological relationships between wildlife and livestock. For control of multihost pathogens, such as salmonella, we need approach to wildlife, livestock and human comprehensively, with considering ecology of the pathogens.

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Full paper
  • Masahito KUBO, Tomomi NAKASHIMA, Takuma HONDA, Yoshie KOCHI, Yui ITO, ...
    Article type: Full paper(Japanese)
    Subject area: pathology
    2013 Volume 18 Issue 2 Pages 65-70
    Published: 2013
    Released on J-STAGE: September 19, 2013
    JOURNAL FREE ACCESS
    Formalin-fixed archival specimens of 131 free-ranging Amami rabbits (Pentalagus furnessi) collected between August 2003 and March 2012 were histopathologically examined. Systemic protozoal infection (probably toxoplasmosis) was diagnosed in an adult female rabbit, and purulent bronchopneumonia due to Gram-negative bacilli infection and fibrinous pericarditis were observed in a young male rabbit. Additionally, various findings such as accumulations of foamy macrophages (suspected endogenous lipid pneumonia), focal fungal pneumonia, focal pyogranulomatous pneumonia, pulmonary abscess, and renal abscess, were found. Among these findings, accumulations of foamy macrophages were most frequently observed (43 of 113 cases). The present study revealed various spontaneous lesions in free-ranging Amami rabbits; however, the results seemed to be limited. Construction of the monitoring system regarding pathological status of all dead Amami rabbits will be needed.
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Case report
  • Yumiko NAKAYA, Tsukasa OKANO, Manabu ONUMA, Takashi YOSHIKAWA, Yuta SA ...
    Article type: Case report(Japanese)
    Subject area: parasitology
    2013 Volume 18 Issue 2 Pages 71-74
    Published: 2013
    Released on J-STAGE: September 19, 2013
    JOURNAL FREE ACCESS
    Although parasitism ofAngiostrongylus cantonensis in wild rats including black rats (Rattus rattus) in the Yambaru area, Okinawa Prefecture, Japan, has been documented by confirmed cases, the pathogenicity and status of infection in the indigenous species of Ryukyu long-furred rats (Diplothrix legata) have not yet been elucidated. To the best of our knowledge, this is the first reported case of A. cantonensis infection that resulted in the death of a Ryukyu long-furred rat, which revealed the pathogenicity of A. cantonensis. As the zoonosis, A. cantonensis infections may adversely affect not only humans but also wild animals, and could in particular, be a major threat for the Yambaru area, which hosts a large number of rare species of wild animals.
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