Joan M Shields
Affiliation: Centers for Disease Control and Prevention
- Inactivation of Cryptosporidium parvum under chlorinated recreational water conditionsJoan M Shields
Division of Parasitic Diseases, Centers for Disease Control and Prevention, National Center for Infectious Disease, Atlanta, GA 30341 3724, USA
J Water Health 6:513-20. 2008..0-log inactivation of Cryptosporidium oocysts during remediation of recreational water venues following fecal diarrhea accidents...
- Prevalence of Cryptosporidium spp. and Giardia intestinalis in swimming pools, Atlanta, GeorgiaJoan M Shields
Centers for Disease Control and Prevention, Atlanta, Georgia 30341 3724, USA
Emerg Infect Dis 14:948-50. 2008..1%) were positive for 1 or both parasites; 10 (6.2%) for Giardia sp., 2 (1.2%) for Cryptosporidium spp., and 1 (0.6%) for both...
- The effect of cyanuric acid on the disinfection rate of Cryptosporidium parvum in 20-ppm free chlorineJoan M Shields
Centers for Disease Control and Prevention, National Center for Zoonotic, Vector Borne, and Enteric Disease, Division of Parasitic Diseases, 4770 Buford Highway, Mail Stop F 36, Atlanta, GA 30341 3724, USA
J Water Health 7:109-14. 2009..Current public health recommendations for hyperchlorination and pool remediation are insufficient for pools using cyanurate-stabilized chlorine to achieve a three log inactivation of the parasite...
- Cyclospora cayetanensis: a review of an emerging parasitic coccidianJoan M Shields
Department of Environmental Analysis, School of Social Ecology, University of California, Irvine 92697, USA
Int J Parasitol 33:371-91. 2003..cayetanensis and three other species; within these a high degree of homology has been observed. This homology and the lack of sequence data from other Cyclospora species have hindered identification methods...
- PCR-restriction fragment length polymorphism method for detection of Cyclospora cayetanensis in environmental waters without microscopic confirmationJoan M Shields
Department of Environmental Analysis and Design, School of Social Ecology, University of California, Irvine, California 92697-7070, USA
Appl Environ Microbiol 69:4662-9. 2003..cayetanensis. We can detect as few as one oocyst seeded into an autoclaved pellet flocculated from 10 liters of surface water. This new protocol should be of great use for environmental microbiologists and public health laboratories...