The study of risk profiling and measure of infectious diseases in exotic and wild animals.

这项研究的目的是为保护日本的生态系统和生物多样性做出贡献。因此，这项工作涉及病原体的风险概况，以及对外来动物和野生动物的流行病的评估，以建立威胁的衡量标准。树状芽孢杆菌(Batrachochytrium Dendrobatidis，Bd)在日本分布广泛，流行程度较高。本地物种具有更多样的单倍型。建立了Bd的无创性检测程序和消毒方法。阐明了RANAV在日本圈养和野生两栖动物种群中的流行模式。两个分离物对本地种均有较强的致病力。此外，还表明禽流感病毒的分布范围扩大了，其流行率正在急剧上升。这些研究活动的结果发表在科学期刊上。这项研究为建立和实施实用的防疫系统提供了有用的信息。

The purpose of this research was to contribute to the preservation of ecosystems and biodiversity in Japan. Therefore, this work involved the risk profiling of pathogens, along with assessment of epidemics in exotic and wild animals, to establish the measure of threat. Batrachochytrium dendrobatidis, Bd was widely distributed with a high prevalence in Japan. Native species have more varied haplotypes. The noninvasive Bd detection procedure and the disinfecting method were established. The epidemic pattern of ranavirus in captive and wild amphibian populations in Japan was clarified. The high pathogenicity of two isolates to native species was demonstrated. Moreover, it was shown that the distribution of the ranavirus has extended, and that its prevalence ratio is sharply rising. The results of these research activities were published in scientific journals. This study produced useful information facilitating the construction and implementation of a practical epidemic prevention system.