The Pool Parasite Outbreak That’s Causing A Panic

July 12, 2019

Even with the best filtration system and the ideal chlorine level, your favorite pool could be harboring this microscopic parasite.

It’s a typical summer day at the neighborhood pool. You’re catching up on a good book while the kids splash and dive under the water, sputtering as they come up for air and no doubt swallowing a little water in the process. A mom near you is sitting on the edge of the pool, changing her baby’s diaper, and you think nothing of it. But, that’s where it all starts.

That hot sun beating down overhead is evaporating not only the pool water, but also the chlorine that normally protects you from the spread of disease in the water. Though that mother may be well-meaning, even a few dozen microscopic parasite eggs shedding from that dirty diaper – or her hands – into the pool water is enough to infect another child with cryptosporidium, also known as Crypto, the now famous “pool parasite.”

What You Need to Know About Crypto

Crypto is a microscopic parasite with a hard, protective outer shell, which makes it difficult to eradicate. It’s found anywhere that human or animal feces have contaminated the water. Historically, it’s been people who live in agricultural areas and people who go deep into the wilderness and drink from what they think are pristine water sources who are exposed to Crypto. Now, Crypto has spread to childcare facilities, municipal water supplies, and what has become the most common source – public swimming pools.

You would think the chemicals used in public pools would be enough to keep this parasite at bay, but it often isn’t. The normal daily levels of chlorine are not strong enough to penetrate the tough outer shell of this parasite. It’s only when the pool is chemically shock treated that the parasite breaks down and becomes harmless. Undiluted 3 percent hydrogen peroxide in a spray bottle is an effective disinfectant you can use to clean contaminated surfaces in childcare facilities, but it will lose its effectiveness if diluted at all.

Crypto is found all over the world and in every state in the US. According to the CDC, almost 750,000 cases occur every year in the US alone. The CDC has seen as many as 80 outbreaks in one year, and we are currently in peak Crypto season.

Once you catch Crypto, it lives in your intestines and you shed millions of parasites into each bowel movement, though it only takes a few to pass it along to another person or animal. Once you are infected, expect up to 3 weeks of watery, explosive diarrhea if you simply allow it to run its course. Symptoms are more severe in people who have decreased immunity.

Shedding the parasite begins with the first episode of explosive diarrhea, and ends weeks after the symptoms are gone. So, the CDC recommends staying out of swimming pools the entire time you have diarrheal symptoms, plus at least 2 weeks after the symptoms are gone.

Who Gets Crypto:

  • Childcare Workers
  • Children who go to daycare, including diaper-aged children
  • Parents of infected children
  • Adults over age 75
  • Caretakers of infected people
  • Backpackers, hikers, and campers who drink contaminated water
  • International travelers
  • People who drink from wells that are unprotected, untreated, or shallow
  • People who handle infected cattle or other animals
  • People exposed to human feces through sexual contact


How Crypto Spreads:

  • Swallowing even a small amount of infected water from a pool or other recreational source
  • Drinking water or beverages contaminated by feces from infected people or animals
  • Putting something in your mouth or accidentally swallowing something that has been in contact with infected stool
  • Eating contaminated raw fruits and vegetables.
  • Touching your mouth (or biting your nails) after your hands have been contaminated by changing an infected diaper, caring for a contaminated person, handling an infected animal, or even after touching a surface that has been contaminated by feces from an infected person


How You Can Steer Clear of Crypto

Whether you are a wilderness lover or simply enjoy taking your kids to the waterpark, there are steps you can take to avoid infection with Crypto:

  1. If you are going to a public pool or water park, make sure it’s one that chemically shock treats their pool on a regular basis. It can take 10 days after the shock treatment for the Crypto to be completely eradicated. Be sure to shower off thoroughly as soon as you are done, to avoid irritation from the chemicals.
  2. Bring your own clean, filtered water when venturing out into the wilderness. Crypto is a very small parasite and can pass through many of the camping water filters on the market. If you are unable to bring enough water to last your duration, bring water to a rolling boil and boil for at least 2 minutes before passing through your filtration equipment.
  3. Don’t go anywhere without your Para-Key from UNI KEY Health. One time, James Templeton and I were on a Fat Flush Cruise to Lose headed to Alaska. I remember one port of call where 2 of our guests were eager to disembark and hike out into the wilderness, and James warned them to bring clean drinking water with before they left.

Concerned for parasite exposure, he and I packed plenty of clean water with us and both took our Para-Key before we headed out. These unfortunate women did not heed his warning and drank what they assumed to be pristine water they found on their hike. I can’t say for certain that the parasite they contracted was Crypto, but I can say they were miserably sick in their rooms shortly after this excursion.

Sweet wormwood, taken at 1000 milligrams 3 times daily, has been recommended by herbalists to take once infected with Crypto. I personally recommend a broad-spectrum multi-herb combination and would take Para-Key 3 times daily for 2 months if I felt I had been exposed to Crypto. If your immune system is weak, I encourage you to seek medical attention at the first sign of infection.


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Ann Louise Gittleman, PhD, CNS, is an award-winning New York Times bestselling author of more than thirty books including The Fat Flush Plan series and her latest book, Radical Metabolism. She’s been rewriting the rules of nutrition for more than 40 years and is internationally recognized as a pioneer in the field of diet, detox and women’s health issues. 

For a FREE daily dose of tips and strategies for maintaining healthy weight, conquering insomnia, and much more…check out my Radical Health Tips.

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