Rush B A, Chapman P A, Ineson R W
Public Health Laboratory, Northern General Hospital, Sheffield.
J Med Microbiol. 1990 Aug;32(4):239-42. doi: 10.1099/00222615-32-4-239.
There was a marked peak in human cases of cryptosporidiosis in the Sheffield area in May and June 1986. Extensive epidemiological investigations failed to find a common source of food or a consistent history of animal contact, but did suggest that a waterborne outbreak of cryptosporidiosis may have occurred. Cryptosporidium oocysts were found in untreated water and in fish from a reservoir complex implicated by epidemiological analysis. Laboratory investigations confirmed that cattle on a farm adjacent to the reservoir complex were a possible source of contamination.
