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Parasitology Research

, Volume 87, Issue 3, pp 231–234 | Cite as

Cryptosporidium parvum oocysts in zebra mussels (Dreissena polymorpha): evidence from the St. Lawrence River

  • Thaddeus K. Graczyk
  • David J. Marcogliese
  • Yves de Lafontaine
  • Alexandre J. Da Silva
  • Barbara Mhangami-Ruwende
  • Norman J. Pieniazek
ORIGINAL PAPER

Abstract

Molluscan shellfish can recover and concentrate environmentally derived waterborne pathogens and can be used for the sanitary assessment of water quality. Oocysts of Cryptosporidium parvum (genotype 1) were identified in zebra mussels (Dreissena polymorpha) from the St. Lawrence River, Quebec. Approximately 67 oocysts/ml of hemolymph and 129 oocysts/g of soft tissue were recovered. The adjusted concentration of oocysts per gram of tissue was 2.2 × 102, and approximately 4.4 × 102 oocysts were recovered from a single mussel. Zebra mussels can serve as biological indicators of waterborne contamination with Cryptosporidium.

Keywords

Water Quality Soft Tissue Zebra Mussel Biological Indicator Cryptosporidium Parvum 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2001

Authors and Affiliations

  • Thaddeus K. Graczyk
    • 1
  • David J. Marcogliese
    • 2
  • Yves de Lafontaine
    • 2
  • Alexandre J. Da Silva
    • 3
  • Barbara Mhangami-Ruwende
    • 1
  • Norman J. Pieniazek
    • 3
  1. 1.Department of Molecular Microbiology and Immunology, School of Hygiene and Public Health, Johns Hopkins University, Baltimore, MD 21205, USA e-mail: tgraczyk@jhsph.edu Tel.: +1-410-6144984; Fax: +1-410-9550105TP
  2. 2.St. Lawrence Centre, Environment Canada, Montreal, Quebec H2Y 2E7, CanadaCA
  3. 3.Division of Parasitic Diseases, National Center for Infectious Diseases, Centers for Disease Control and Prevention, Public Health Service, U.S. Department of Health and Public Services, Atlanta, GA 30341, USAUS

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