Cryptosporidiosis and surface water.

Water-borne cryptosporidiosis: a recurring problem

Cryptosporidium , a gastrointestinal protozoan parasite, is increasingly being identified as a cause of diarrhoeal disease in humans. During the 1980s Cryptosporidium emerged as a common cause of infection in both developed and developing nations. The infection rate for individuals with diarrhoeal illness is 2 per cent in industrialized countries and 5-10 per cent in Third World countries. Cryp...

Cryptosporidiosis and Filtration of Water from Loch Lomond, Scotland

Previous evidence has suggested an association between consumption of unfiltered water from Loch Lomond, Scotland, and cryptosporidiosis. Before November 1999, this water had been only microstrained and disinfected with chlorine; however, since that time, physical treatment of the water (coagulation, rapid gravity filtration) has been added. To determine risk factors, including drinking water, ...

Preventing cryptosporidiosis: the need for safe drinking water.

Three Drinking-Water–Associated Cryptosporidiosis Outbreaks, Northern Ireland

Three recent drinking-water-associated cryptosporidiosis outbreaks in Northern Ireland were investigated by using genotyping and subgenotyping tools. One Cryptosporidium parvum outbreak was caused by the bovine genotype, and two were caused by the human genotype. Subgenotyping analyses indicate that two predominant subgenotypes were associated with these outbreaks and had been circulating in th...

Cryptosporidiosis and acute leukaemia.

Six children with cryptosporidiosis, concurrently receiving chemotherapy for acute leukaemia (n = 5) and lymphoma (n = 1), are described. Two died with evidence of persistent infection. Modification of the chemotherapy regimens in the other four children was associated with successful eradication of the pathogen and permitted continued treatment of the primary disease.