Xunde Li, Philippe Brasseur, Patrice Agnamey, Jean Jacques Ballet, Chu Clemenceau
{"title":"时间和温度对氯化自来水中小隐孢子虫卵囊活力和感染性的影响。","authors":"Xunde Li, Philippe Brasseur, Patrice Agnamey, Jean Jacques Ballet, Chu Clemenceau","doi":"10.1080/00039890409603426","DOIUrl":null,"url":null,"abstract":"<p><p>The authors compared the viability and infectivity of Cryptosporidium parvum oocysts in chlorinated tap water at various storage durations (i.e., 2 wk, 4 wk, 6 wk, or 8 wk) and at 2 cool temperatures (i.e., 10 degrees C and 4 degrees C), using in vitro (excystation) and in vivo (suckling mouse) methods. After 8 wk, mean oocyst excystation decreased to 33.4% and 26.7% at 10 degrees C and 4 degrees C, respectively. Suckling mice infectivity was higher after storage at 10 degrees C than after storage at 4 degrees C. These data suggest that Cryptosporidium parvum oocysts can survive and remain infectious for 8 wk in cool chlorinated tap water.</p>","PeriodicalId":8155,"journal":{"name":"Archives of environmental health","volume":"59 9","pages":"462-6"},"PeriodicalIF":0.0000,"publicationDate":"2004-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/00039890409603426","citationCount":"10","resultStr":"{\"title\":\"Time and temperature effects on the viability and infectivity of Cryptosporidium parvum oocysts in chlorinated tap water.\",\"authors\":\"Xunde Li, Philippe Brasseur, Patrice Agnamey, Jean Jacques Ballet, Chu Clemenceau\",\"doi\":\"10.1080/00039890409603426\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><p>The authors compared the viability and infectivity of Cryptosporidium parvum oocysts in chlorinated tap water at various storage durations (i.e., 2 wk, 4 wk, 6 wk, or 8 wk) and at 2 cool temperatures (i.e., 10 degrees C and 4 degrees C), using in vitro (excystation) and in vivo (suckling mouse) methods. After 8 wk, mean oocyst excystation decreased to 33.4% and 26.7% at 10 degrees C and 4 degrees C, respectively. Suckling mice infectivity was higher after storage at 10 degrees C than after storage at 4 degrees C. These data suggest that Cryptosporidium parvum oocysts can survive and remain infectious for 8 wk in cool chlorinated tap water.</p>\",\"PeriodicalId\":8155,\"journal\":{\"name\":\"Archives of environmental health\",\"volume\":\"59 9\",\"pages\":\"462-6\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2004-09-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://sci-hub-pdf.com/10.1080/00039890409603426\",\"citationCount\":\"10\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Archives of environmental health\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1080/00039890409603426\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Archives of environmental health","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1080/00039890409603426","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Time and temperature effects on the viability and infectivity of Cryptosporidium parvum oocysts in chlorinated tap water.
The authors compared the viability and infectivity of Cryptosporidium parvum oocysts in chlorinated tap water at various storage durations (i.e., 2 wk, 4 wk, 6 wk, or 8 wk) and at 2 cool temperatures (i.e., 10 degrees C and 4 degrees C), using in vitro (excystation) and in vivo (suckling mouse) methods. After 8 wk, mean oocyst excystation decreased to 33.4% and 26.7% at 10 degrees C and 4 degrees C, respectively. Suckling mice infectivity was higher after storage at 10 degrees C than after storage at 4 degrees C. These data suggest that Cryptosporidium parvum oocysts can survive and remain infectious for 8 wk in cool chlorinated tap water.
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