||Giardiasis in Washington State
Frost, Floyd ;
Harter, Lucy ;
Plan, Byron ;
Fukutaki, Karen ;
||Washington State Dept. of Social and Health Services, Olympia.;Health Effects Research Lab., Research Triangle Park, NC.
||Health Effects Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency ;
||EPA 600/1-82-016; EPA-R-805809
Giardiasis--Washington (State) ;
Giardia lamblia ;
Drinking water--Washington (State)--Contamination ;
Waterborne infection--Washington (State)
Potable water ;
Infectious diseases ;
Parasitic diseases ;
Water pollution ;
Drinking water ;
||Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy.
||x, 80 leaves : forms ; 28 cm.
The objective was to determine the potential for transmission of giardiasis through approved drinking water supplies in Washington State. The project consisted of five studies: the first was conducted during trapping seasons (1976-1979) and resulted in examining of 656 beaver stool samples, 172 muskrat and 83 other animal stools. Positivity for beaver was 10.8%, for muskrat, 51.2%. No Giardia was found in other mammals. The second study contacted 865 Giardia-infected Washington state residents to identify likely sources or possible risk factors for infection. Clusters of cases were linked to day care centers, backpacker groups or sites for drawing water on outings and foreign travel. No excess cases were observed for users of surface drinking water supplies. The third study was a case-control study to identify risk factors for giardiasis.
"November 1982." "PB83-134882." "Grant no. R 805809." Bibliography: leaves 62-63.