School of Public Health, University of Alberta, Edmonton, Canada E-mail:
Faculty of Agricultural, Life & Environmental Sciences, University of Alberta, Edmonton, Canada.
J Water Health. 2023 Mar;21(3):439-442. doi: 10.2166/wh.2023.325.
Rising temperatures are increasing environmental habitats for thermotolerant pathogens, such as the so-called 'brain-eating amoeba', Naegleria fowleri. To the best of our knowledge, however, Naegleria species have not been reported in environmental water sources in Canada. We surveyed popular recreational lakes in Alberta, Canada during the summer bathing period to determine the presence or absence of Naegleria species. While N. fowleri was not isolated in this study, we identified other thermotolerant species, including Naegleria pagei, Naegleria gruberi, Naegleria jejuensis and Naegleria fultoni using culture-based methods, hence indicating the potential conditions to support N. fowleri. Ongoing monitoring and examination of water for pathogenic amoebae is recommended in order to assist in the public health management of water sources.
气温升高正在为耐热病原体（如所谓的“食脑变形虫”）创造更多的环境栖息地。然而，据我们所知，在加拿大的环境水源中尚未发现纳氏变形虫属物种。在夏季沐浴期，我们对加拿大艾伯塔省的热门休闲湖泊进行了调查，以确定是否存在纳氏变形虫属物种。虽然在本研究中未分离到福氏纳氏变形虫，但我们使用基于培养的方法鉴定了其他耐热物种，包括佩氏纳氏变形虫、格氏纳氏变形虫、济州纳氏变形虫和福氏纳氏变形虫，因此表明存在支持福氏纳氏变形虫的潜在条件。建议对水源中的致病阿米巴虫进行持续监测和检查，以协助进行水源的公共卫生管理。
