BTW, almost forgot to mention, activated charcoal is AMAZING stuff for stomach bugs! My daughter lives with her fingers in her mouth and she is a normal 9 year old (with an odd finger in the mouth fetish?) Anyway, the activated charcoal has kept us out of the ER many times, when a bout of vomiting starts, I start giving her the tablets and 90% of the time, it will make the vomiting stop! We haven't been to the hospital in 4 years! Before that, she would always need an IV to get fluids back in and suppositories to stop the vomiting. It may work on Cyclospora as well. It works on all types of stomach vomiting/diarrhea symptoms fast!