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Everybody loves the swimming pool. But how clean is the water in the average backyard or public pool? If you trust chlorine to take care of germs, you're in for a surprise.
人人都愛游泳。但是在普通人家后院的泳池和公共泳池里的水到底有多干凈呢？如果你信任氯的殺菌功效，本文可能會讓你大吃一驚。
Chlorine and other disinfectants do indeed help to clean the water, but some germs can survive in even the best-kept pool. For example, cryptosporidium may live in pool water for several days. Crypto causes a diarrheal illness and may rinse off the bodies of infected people or diapered children into the pool. If you swallow infected pool water, you may become sick. Other germs may live for a few minutes or a few hours in a chlorinated pool: Giardia, Shigella, and E. Coli may cause diarrheal illnesses.
氯和其它消毒劑并不能幫助清理泳池，一些細菌甚至能在保養最好的泳池內存活。例如，隱孢子蟲能在泳池里生活好幾天。隱孢子蟲能引起腹瀉。受感染者或使用尿布的兒童都能將隱孢子蟲帶到泳池內。如果你嗆了一口隱孢子蟲滋生的池水，你可能會生病。經過氯消毒的泳池內，一些細菌也許能存活幾分鐘或者幾小時，例如：鞭毛蟲，志賀氏桿菌，大腸桿菌，它們都能引起腹瀉。
Pseudomonas Aeruginosa may cause an ear infection called swimmer's ear and also a skin infection called "hot tub rash," that is usually associated with very warm pools and spas. While keeping the correct chlorine and ph levels will minimize water-borne illness, prevention is also a good idea.
通常在水溫較高的泳池和噴泉里，綠膿桿菌會感染人的耳部和皮膚，引起“游泳耳病 ”和“熱水浴缸皮疹”發生。控制好水中氯的含量和ph值能最大限度減少水生疾病的發病率，但是做好防護工作仍不失為一個好辦法。
Keep diapered children in the water for only brief periods and keep sick people out of the water altogether. And, don't ever swallow pool water.
不要讓帶尿布的孩子在水中停留太長時間，同理也要讓病人遠離泳池。記住，千萬不要吞下泳池的水。
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