Cryptosporidiosis in a town in the South Eastern Health Board: A case control study

During a 48-hour period in December 2002, four cases of cryptosporidiosis from one area were notified to the Regional Public Health Department of the South Eastern Health Board (SEHB). During the following 2 days, following an alert to hospital clinicians and general practitioners in the area, a further six cases were reported. All ten cases lived in the vicinity of one town. No other cases were reported from this town in the previous 12 months.