It only takes one person having diarrhea in the water to contaminate all of the water in a pool. Don’t swim or let your kids swim if sick with diarrhea. Learn more this summer: http://go.usa.gov/x5kEe .
Diarrheal Illness
Diarrhea and swimming don’t mix! Diarrhea is the most common recreational water illness (RWI). Swimmers who are sick with diarrhea—or who have been sick in the last two weeks—risk contaminating pool water with germs.
Diarrheal illnesses are caused by germs such as Crypto (short for Cryptosporidium), Giardia, Shigella, norovirus and E. coli O157:H7. These germs can live from minutes to days in pools, even if the pool is well-maintained. Some germs are very tolerant to chlorine and were not known to cause human disease until recently. Once the pool has been contaminated, all it takes is for someone to swallow a small amount of pool water to become infected.
Crypto has become the leading cause of swimming pool-related outbreaks of diarrheal illness. It can stay alive for days even in well-maintained pools and can cause prolonged diarrhea (for 2-3 weeks).For more information about Crypto and healthy swimming, see the fact sheet below and visit CDC’s Crypto website.
Giardia is another germ that often causes swimming pool-related outbreaks of diarrheal illness. It has a tough outer shell that allows it to survive for up to 45 minutes even in properly chlorinated pools. For more information about Giardia and healthy swimming, see the fact sheet below and visit CDC’s Giardia website.
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