One sip of pool water can expose you to this parasite in Texas. What to know
Swimming is one of the best ways to cool off during a Texas summer, especially over the Fourth of July weekend.
But before you head to the pool, health officials are warning about a stomach illness that spreads in recreational water this time of year.
The illness is caused by a parasite called Cryptosporidium and can leave people sick for days or even weeks.
Unlike other water germs, it’s resistant to chlorine. Here’s what to know.
What is Cryptosporidium?
Cryptosporidium, often called “crypto,” is a parasite that can cause diarrhea and other stomach problems, according to the Centers for Disease Control and Prevention. The stomach illness it causes is called cryptosporidiosis.
What makes crypto different is its tough outer shell, which helps it survive in pool water for several days, even after the water has been treated with chlorine. That gives the parasite more time to spread from one swimmer to another.
According to the Texas Department of State Health Services, Texas reports more than 800 cases of cryptosporidiosis each year.
Although infections can happen year-round, health officials say cases typically increase during the warmer months as more people spend time in pools and water parks.
What are the symptoms of Cryptosporidium?
The most common symptom of cryptosporidiosis is watery diarrhea, but people may also experience stomach cramps, nausea, vomiting, fever and dehydration, according to the CDC.
Symptoms typically begin two to 10 days after someone is infected.
While anyone can get sick, young children, older adults, pregnant women and people with weakened immune systems are more likely to become seriously ill.
Most healthy people recover without treatment, but the CDC recommends contacting a health care provider if symptoms are severe, don’t go away or lead to dehydration.
How can I protect myself from Cryptosporidium?
Good hygiene is one of the best ways to help prevent cryptosporidium, according to the CDC.
Health officials warn that alcohol-based hand sanitizer doesn’t work well against crypto, so washing your hands with soap and water is your best defense.
Parents can also lower the risk by taking children on regular bathroom breaks, checking diapers often and changing them in a restroom instead of near the pool.
You should also avoid drinking untreated water from lakes, rivers or streams, and wash fresh fruits and vegetables before eating them.
