Seasonal Fluctuation of Acanthamoeba spp. Contamination in Water Containers Placed Indoors and Outdoors
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- MIYAZAKI Toshio
- Department of Protozoology, Institute of Tropical Medicine, Nagasaki University
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- YAGITA Kenji
- Department of Parasitology, National Institute of Infectious Diseases
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- YANAGI Tetsuo
- Department of Protozoology, Institute of Tropical Medicine, Nagasaki University
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- UEMURA Haruki
- Department of Protozoology, Institute of Tropical Medicine, Nagasaki University
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- KANBARA Hiroji
- Department of Protozoology, Institute of Tropical Medicine, Nagasaki University
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抄録
The medical importance of free living amebas has been increasing as a worldwide problem. In Japan amebic keratitis caused by Acanthamoeba has caught the attention of ophthalmologists due to increasing risk of infection for soft-contact lens users. In the present work we examined the process of Acanthamoeba contamination in water placed indoors and outdoors under different conditions in Nagasaki city, Japan. The most frequently contaminated water was in coverless outdoor containers in the spring, and the next was in similar conditions, but in the autumn. The highest contamination of indoor water in coverless containers was found in the summer although the frequency was much lower than outdoors. When the containers were covered, complete protection for water bodies from Acanthamoeba contamination was obtained indoors, and nearly complete outdoors. Electrophoretic patterns of mitocondrial DNA fragments digested by two restriction enzymes indicated that Acanthamoeba contaminants seemed to be season-specific although the number of examined isolates was very small.
収録刊行物
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- Acta Medica Nagasakiensia
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Acta Medica Nagasakiensia 52 (1), 13-18, 2007
長崎大学医学部
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詳細情報 詳細情報について
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- CRID
- 1390001204676742400
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- NII論文ID
- 110006192033
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- NII書誌ID
- AA00508430
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- HANDLE
- 10069/9388
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- ISSN
- 00016055
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- IRDB
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可