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RECORD NUMBER: 32 OF 55

OLS Field Name OLS Field Data
Main Title Occurrence and Significance of Cryptosporidium in Water.
Author Rose, J. B. ;
CORP Author Arizona Univ., Tucson. Dept. of Microbiology and Immunology.;Health Effects Research Lab., Research Triangle Park, NC.
Year Published 1988
Report Number EPA-R-813536; EPA/600/J-88/014;
Stock Number PB88-214713
Additional Subjects Water pollution ; Protozoal diseases ; Aquatic microbiology ; Epidemiology ; Sewage disposal ; Disease vectors ; Taxonomy ; Arizona ; California ; Colorado ; Oregon ; Life cycles ; Surface waters ; Texas ; Utah ; Water treatment ; Giardia ; Potable water ; Cryptospnridium ; Water pollution effects(Humans) ; Waterborne diseases ; Cryptosporidiosis
Holdings
Library Call Number Additional Info Location Last
Modified
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Status
NTIS  PB88-214713 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 12/29/1988
Collation 9p
Abstract
Three outbreaks of waterborne disease have been attributed to Cryptosporidium-two linked to drinking water and a third to surface water-yet the risk of waterborne disease is unknown because many factors may contribute to transmission. Of 107 surface water samples collected in six western states, 77 were positive for the presence of Cryptosporidium oocysts. A high count was found in raw sewage (1,732 oocysts/L), whereas low counts were found in waters without waste discharges (0.04 oocysts/L). Cryptosporidium has also been detected in drinking water. Little information is available, however, on oocyst survival in the environment or during sewage and drinking water treatment processes. Based on environmental occurrence, the risk of Cryptosporidium transmission by the water route may be equal to or greater than that of Giardia.