The CDC says outbreaks of an infection linked to swimming pools have doubled in just the past two years. In 2011, there were 20 Crypto outbreaks, 16 in 2012, and 13 in 2013. The CDC said it did not know if the number of outbreaks had increased or there has been better detection.
While standard levels of chlorine kill most germs within a few minutes, Crypto can be extremely hard to kill.
To kill the parasite, the CDC recommends closing pools and treating the water with high levels of chlorine, called hyperchlorination. Any inadvertent ingestion of even chlorinated pool water could wind up giving you cryptosporidium.
You might not think that fecal matter is very common in pool water. oh, but it is.
Total cases reported to CDC have increased from about 1 in 100,000 in the early 1990s to about four in 100,000 in recent years, she said. These outbreaks emphasized the continuing challenges that treated recreational water venues have with Crypto, owing to the difficulty in killing the germs and the small number of germs that can make people sick. And to keep from getting sick, the CDC advises swimmers not to swallow pool water.
The CDC advises those infected with Crypto to avoid swimming until two weeks after recovering from diarrhea.
The states will be largest number people who were sickened past year were OH (1,940) and Arizona (352), according to the news release. Infections can cause watery diarrhea, stomach cramps, nausea or vomiting, and can lead to dehydration.
Hlavsa explained that crypto is resistant to chlorine, and can survive up to 10 days in even properly chlorinated pool water. Final numbers for 2016, along with 2015 numbers, will come in a later report, but "we expect them to go up", said Michele Hlavsa, head of CDC's healthy swimming program.
For example, the researchers said Arizona health officials used the system previous year to confirm a specific type of Cryptosporidium that spread to multiple swimming pools around Phoenix.
Take children on bathroom breaks regularly, and check diapers in a diaper-changing area and not right next to the swimming pool. "We all share the water we swim in, but we don't want to share germs, pee or poop".