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“Crypto” (krip-TOE)

What is Crypto?

two girls next to pool

Crypto is a germ that causes diarrhea. Crypto, short for Cryptosporidium, is found in infected people's stool and cannot be seen by the naked eye. This germ is protected by an outer shell that allows it to survive for long periods of time and makes it resistant to chlorine disinfection found in pools.

Why should I be concerned about Crypto?

During the past two decades, Crypto has become recognized as one of the most common causes of waterborne illness in the United States. The germ is found in every part of the United States and the world.

How is Crypto spread at aquatic facilities?

Crypto is not spread by contact with blood. Crypto can be spread:

How do I protect myself and my family?

Healthy Swimming behaviors are needed to protect you and your kids from recreational water illnesses (RWIs) and will help stop germs from getting in the pool in the first place.

Here are six “P-L-E-As” that promote Healthy Swimming:

  1. Please don't swim when you have diarrhea.
  2. Please don't swallow the pool water.
  3. Please practice good hygiene. Take a shower before swimming and wash your hands after using the toilet or changing diapers.
  4. Please take your kids on bathroom breaks or check diapers often.
  5. Please change diapers in a bathroom and not at poolside.
  6. Please wash your child thoroughly (especially the rear end) with soap and water before swimming.

Learn more about preventing cryptosporidiosis.

 

Content Source: Division of Parasitic Diseases, National Center for Zoonotic, Vector-borne, and Enteric Diseases
Page last modified: March 21, 2007