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NTIS 바로가기Journal of veterinary clinics = 한국임상수의학회지, v.36 no.1, 2019년, pp.15 - 22
박선일 (강원대학교 수의과대학 및 동물의학종합연구소) , 정원화 (국립환경과학원 환경보건연구부) , 이광녕 (농림축산검역본부 역학조사과)
Highly pathogenic avian influenza (HPAI) is among the top infectious disease priorities in Korea and the leading cause of economic loss in relevant poultry industry. An understanding of the spatial epidemiology of HPAI outbreak is essential in assessing and managing the risk of the infection. Though...
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핵심어 | 질문 | 논문에서 추출한 답변 |
---|---|---|
커널밀도란? | 커널밀도(kernel density)는 점(point)으로 표현되는 사상의 공간적 밀도를 통계적으로 추정하는 방법으로 한 점을 중심으로 주변에 다른 점들이 많이 분포할수록 해당 점이 위치 한 지점에서의 공간적 밀도는 증가한다(20). 공간적 밀도추정에 있어서 주변을 정의하는 지리적 범위를 나타내는 탐색 반경(bandwidth, search radius)을 넓게 설정할수록 점들 간 영향력은 지리적으로 확장된다. | |
전 세계적으로 고병원성 조류인플루엔자의 발생 양상은 어떠한가? | 2003년 이후 고병원성 조류인플루엔자(highly pathogenic avian influenza, HPAI)는 우리나라를 비롯한 아시아, 유럽, 아프리카의 가금류와 야생조류 집단에서 광범위한 유행을 초래하였으며, 이후 일부 국가에서는 산발적이고 국지적인 양 상으로 지속적으로 발생하였다(1,10,22,23). 국내에서는 2003- 2018년 2월까지 총 7회(2003-2004, 2006-2007, 2008, 2010- 2011, 2014-2016. | |
국내에서 유행한 고병원성 조류인플루엔자의 최초 유입원이 무엇인가? | 11-2018.2)의 유행이 있었으며, 역학조사 결과 해외에서 유입된 철새 (migratory bird)가 최초 유입원으로 추정되었다. HPAI 바이러스의 장거리 전파와 야생조류의 원인적 연관성에 대해서는 여전히 논란이 있지만 야생조류는 AI 바이러스의 자연숙주이며(2,13,30), 동남아시아, 러시아, 유럽 및 아프리카 지역에서 HPAI 전파의 주요 원인으로 야생조류의 이동과 가금류 생축의 이동 간 역학적 관련성에 대한 많은 증거가 보고 되어 있고, 특히 오리과(Anatidae)의 조류는 감염되어도 무증상으로 장거리를 이동하면서 바이러스를 배출할 수 있다는 점에서 HPAI 바이러스의 장거리 전파와 특히 오리류 물새 간 통계적 연관성은 가장 높은 것으로 알려져 있다(2,7,9,12, 18,26,33). |
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