waterborne disease 由水携带的微生物及毒性物质导致的疾病。常见之水媒疾病有伤寒、霍乱、肝炎、痢疾、破伤风、小儿麻痹症及其它肠胃道疾病等。
暴雨引起洪水及土石流，受到污染的水源也导致霍乱及其他水媒疾病的病例攀升。
Torrential rains have resulted in flooding and landslides. And contaminated water supplies threaten to lead to a surge in cholera cases and other waterborne illnesses.
而主要的水媒病毒为a型肝炎病毒及诺华克病毒；会引起疾病的原生动物，则包括隐孢子虫、内阿米巴原虫、梨形鞭毛虫等。
Among the many waterborne disease-causing viruses are hepatitis a and norwalk; the pathogenic protozoa include cryptosporidium entamoeba and giardia.
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