Across the United States, several water recreational facilities
are facing class-action lawsuits because their patrons became
infected with cryptosporidium. Cryptosporidium is a parasite
that is released into the water in the form of oocysts from a
person who is experiencing or has had diarrhea within a two-week
time frame, or has poor personal or poolside hygiene. In fact,
the number of cryptosporidium cases reported to the Centers for
Disease Control and Prevention (CDC) has risen substantially in
recent years. According to CDC data, “in 2005, 2006, and 2007
the number of non-outbreak-related crypto cases rose 41 percent,
24 percent, and 66 percent, respectively.” Additionally,
considerable increases in outbreaks associated with recreational
pools and water parks were recorded in 2006 and 2007. Seeking A
Solution More water venues are selecting ultraviolet (UV) or
ozone systems as their primary water sanitation because,
although chlorine is a satisfactory secondary disinfectant, it
does not do an adequate j