Zhang Xiao-Ping, He Yan-Yan, Zhu Qian, Ma Xiao-Jiang, Cai Li
Shanghai Municipal Center for Disease Control and Prevention, Shanghai 200336, China.
Zhongguo Ji Sheng Chong Xue Yu Ji Sheng Chong Bing Za Zhi. 2010 Dec 30;28(6):435-8.
To understand the contamination status of Cryptosporidium sp. and Giardia lamblia in drinking water, source water and environmental water in Shanghai.
All water samples collected from drinking water, source water and environmental water were detected by a procedure of micromembrane filtration, immune magnetic separation (IMS), and immunofluorescent assay (IFA).
Cryptosporidium oocysts and Giardia cysts were not found in 156 samples of the drinking water including finished water, tap water, or pipe water for directly drinking in communities. Among 70 samples either source water of water plants (15 samples), environmental water from Huangpu River(25), canal water around animal sheds(15), exit water from waste-water treatment plants(9), or waste water due to daily life(6), Cryptosporidium oocysts were detected in 1(6.7%), 2(8.0%), 7(46.7%), 1(11.1%), and 1(16.7%) samples, respectively; and Giardia cysts were detected in 1(6.7%), 3(12.0%), 6 (40.0%), 2(22.2%), and 2(33.3%), respectively. The positive rate of Cryptosporidium oocysts and Giardia cysts was 17.1% (12/70) and 20.0% (14/70), respectively.
No Cryptosporidium oocysts and Giardia cysts have been detected in drinking water, but found in source water and environmental water samples in Shanghai.
了解上海市饮用水、水源水和环境水中隐孢子虫及贾第鞭毛虫的污染状况。
对采集的饮用水、水源水和环境水水样，采用微膜过滤、免疫磁分离（IMS）和免疫荧光法（IFA）进行检测。
156份社区直饮水、自来水或管道直饮水样中未检出隐孢子虫卵囊和贾第鞭毛虫包囊。在70份水样中，包括水厂水源水（15份）、黄浦江环境水（25份）、畜禽养殖棚舍周边沟渠水（15份）、污水处理厂出水（9份）和生活污水（6份），隐孢子虫卵囊的检出率分别为1份（6.7%）、2份（8.0%）、7份（46.7%）、1份（11.1%）和1份（16.7%）；贾第鞭毛虫包囊的检出率分别为1份（6.7%）、3份（12.0%）、6份（40.0%）、2份（22.2%）和2份（33.3%）。隐孢子虫卵囊和贾第鞭毛虫包囊的总阳性率分别为17.1%（12/70）和20.0%（14/70）。
上海市饮用水中未检出隐孢子虫卵囊和贾第鞭毛虫包囊，但在水源水和环境水样品中检出。
