I believe you mean Cryptosporidium sp. It's an enteric parasite
which is transmitted in a majority of cases by feces contaminated water.
One of the most recent outbreaks occured in Milwaukee last year(?).
My company, Alexon Biomedical, Inc., makes diagnostic assays to
detect Crypto in patient stool samples. For info on Crypto or our
products call (800) 366-0096. We also have products for Giardia, E.
histo., C. difficile, Roto & Adenovirus, etc.
- matt at alexon.com