Seyfried P L, Tobin R S, Brown N E, Ness P F
Am J Public Health. 1985 Sep;75(9):1071-5. doi: 10.2105/ajph.75.9.1071.
A prospective cohort epidemiological-microbiological study was carried out at 10 beaches in Ontario, Canada. Lake water and sediment samples collected at the beaches were analyzed for fecal coliforms, fecal streptococci, heterotrophic bacteria, Pseudomonas aeruginosa, and total staphylococci. Mean fecal coliform levels in the surface water of the lakes were within accepted guidelines. Bacterial densities were found to be approximately 10 times higher in the sediment than in the corresponding surface water samples. Morbidity among swimmers was shown to be related to staphylococcal counts, to fecal coliform levels, and, somewhat less strongly, to fecal streptococcal counts. Total staphylococci appeared to be more consistent indicators for predicting total morbidity rates among swimmers.
在加拿大安大略省的10个海滩开展了一项前瞻性队列流行病学 - 微生物学研究。对在海滩采集的湖水和沉积物样本进行了粪便大肠菌群、粪链球菌、异养细菌、铜绿假单胞菌和总葡萄球菌的分析。湖泊表层水中的平均粪便大肠菌群水平在可接受的指导范围内。发现沉积物中的细菌密度比相应的表层水样本中高约10倍。游泳者的发病率与葡萄球菌计数、粪便大肠菌群水平有关,与粪链球菌计数的相关性稍弱。总葡萄球菌似乎是预测游泳者总发病率更一致的指标。