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Applied and Environmental Microbiology, March 2007, p. 2013-2015, Vol. 73, No. 6
0099-2240/07/$08.00+0     doi:10.1128/AEM.02412-06
Copyright © 2007, American Society for Microbiology. All Rights Reserved.

SHORT REPORT

Human Enteropathogen Load in Activated Sewage Sludge and Corresponding Sewage Sludge End Products{triangledown}

Thaddeus K. Graczyk,1,2* Frances E. Lucy,3 Leena Tamang,1 and Allen Miraflor4

Department of Environmental Health Sciences, Division of Environmental Health Engineering, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland 21205,1 Department of Molecular Microbiology and Immunology, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland 21205,2 School of Science, Institute of Technology, Sligo, Ireland,3 Johns Hopkins University, Homewood Campus, Baltimore, Maryland 212184

Received 13 October 2006/ Accepted 21 January 2007

This study demonstrated a significant reduction in the concentrations of Cryptosporidium parvum and Cryptosporidium hominis oocysts, Giardia lamblia cysts, and spores of human-virulent microsporidia in dewatered and biologically stabilized sewage sludge cake end products compared to those of the respective pathogens in the corresponding samples collected during the sludge activation process.

* Corresponding author. Mailing address: Department of Environmental Health Sciences, Division of Environmental Health Engineering, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, MD 21205. Phone: (410) 614-4984. Fax: (410) 955-0105. E-mail: tgraczyk{at}jhsph.edu.

{triangledown} Published ahead of print on 2 February 2007.

Applied and Environmental Microbiology, March 2007, p. 2013-2015, Vol. 73, No. 6
0099-2240/07/$08.00+0     doi:10.1128/AEM.02412-06
Copyright © 2007, American Society for Microbiology. All Rights Reserved.



This article has been cited by other articles:

  • Graczyk, T. K., Lucy, F. E., Tamang, L., Mashinski, Y., Broaders, M. A., Connolly, M., Cheng, H.-W. A. (2009). Propagation of Human Enteropathogens in Constructed Horizontal Wetlands Used for Tertiary Wastewater Treatment. Appl. Environ. Microbiol. 75: 4531-4538 [Abstract] [Full Text]  
  • Jedrzejewski, S., Graczyk, T. K., Slodkowicz-Kowalska, A., Tamang, L., Majewska, A. C. (2007). Quantitative Assessment of Contamination of Fresh Food Produce of Various Retail Types by Human-Virulent Microsporidian Spores. Appl. Environ. Microbiol. 73: 4071-4073 [Abstract] [Full Text]  


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