A stomach bug report is currently in the news as shown in the article Stomach Bug Sickens People in 3 More States. This is caused by the protozoan oocyst Cyclospora cayetanensis. More information about it may be found in this technical paper. It is also briefly mentioned in the CDC Effect of Chlorination on Inactivating Selected Pathogen article. It appears to be very chlorine resistant, similar to Cryptosporidium parvum though no specific CT value has been determined for it. As with most protozoan oocysts, it is extremely unlikely to be found in residential pools because it requires an infected person to enter the pool with diarrhea (something that some people unfortunately do in some public pools).
Cyclospora - another stomach bug in water (and food)
- Thread starter chem geek
- Start date
I am surprised to read this... and not. I was at a pool store that I don't frequent much getting some 12%. I happened to notiice they sold pool signs and I would like to get one since we are getting more neighborhood kids over.
I noticed one of the "Do Not" signs was strictly focused on diarrhea
Apparently it's Code in CA...
http://www.hoalawblog.com/2013/02/diarrhea_signs_and_others_now.html
I noticed one of the "Do Not" signs was strictly focused on diarrhea
Apparently it's Code in CA...
http://www.hoalawblog.com/2013/02/diarrhea_signs_and_others_now.html
It is VERY similar to cryptosporidium. In fact, a cryptosporidium smear is what our hospital uses to test for cyclospora.
Thanks, being in a state that has been hard-hit by cyclospora, I was wondering about if chlorine would kill it quickly. Do you all concur that 14 days is a necessary ban following "active diarrhea?"
14 days seems like a long time, but I'd rather be safe than sorry. I don't know if you continue to shed active parasites after the diarrhea has stopped.