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論文(リポジトリ) |
論文(リポジトリ)
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押谷, 仁 ; 鈴木, 宏
概要:
Emerging and re-emerging viral infections have continuously occurred in many parts of the world. Such viral infections i
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ncluding Ebola virus, Hantavirus Pulmonary Syndrome and influenza virus A （H5N1） occurred in 1990’s. There are three sources for new viruses to emerge in human population； 1） new virus variants, 2） introduction from other species, 3） dissemination from smaller population. Many factors should be involved in the emerging or re-emerging of viruses. These include viral, social and environmental factors. The most important viral factor is thigh mutation rate, particularly in RNA viruses. Various social factors such as population movement, urbanization, and developments in tropical forests are responsible for some emerging or re-emerging viruses. In some viral infections, environmental factors play a crucial role. Technology developments such as enhanced global surveillance and improved laboratory methods have also contributed to the detection of new virus infections. International collaboration system urgently needs to be established to make a quick and appropriate response to emerging and re-emerging diseases. Such international collaboration is organized by the World Health Organization（WHO）.
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| 2.
論文(リポジトリ) |
論文(リポジトリ)
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鈴木, 宏 ; 押谷, 仁 ; 村山, 直也 ; 川崎, 聡 ; 斉藤, 玲子 ; 関, 奈緒 ; 田辺, 直仁
概要:
Influenza viruses are well known for their ability to cause sudden, pervasive infection in all age group on a global sca
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le. In this paper we reviewed an avian influenza A （H5N1） outbreak in Hong Kong, 1996, as an emerging infectious disease, and also prevention and control influenza in Japan. Recent and historical information suggest the emergence of influenza pandemic. An avian influenza A （HsN1） outbreak was reported in Hong Kong, in which at least 18 humans infected and 6 of them died. Planning for the next pandemic is therefore a matter of concern for international and national health authorities. In Japan, outbreaks of influenza at aged people’s nursing homes in many areas were reported in the 1996－1997 season, and the Government advised practitioners and local policy－makers to immunize those people. Influenza vaccines are strongly recommended for any person aged over 6 months in developed counties who is at increased risk for complications. However, historically the main target group of influenza vaccination in Japan was school children until June 1994, and almost no elderly Japanese have ever been vaccinated. Now, the introduction on the vaccination program for elderly persons is in process.
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| 3.
論文(リポジトリ) |
論文(リポジトリ)
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鈴木, 宏 ; 斎藤, 玲子 ; 坂井, 貴胤 ; 押谷, 仁 ; 増田, 寛樹 ; 佐藤, 博 ; 西川, 眞
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