Nonpathogenic Protozoa

  • Dickson D. Despommier
  • Robert W. Gwadz
  • Peter J. Hotez


Many species of protozoa can infect humans, but most are commensals and cause no disease. Their presence in the stool, however, is an important indicator that the patient had ingested some fecal matter, and so their identification has diagnostic value. In addition, it is important for the clinician to recognize these organisms as commensals rather than, in ignorance, to treat the patients unnecessarily.


Periodontal Disease Large Intestine Pleural Fluid Fecal Matter Entamoeba Histolytica 
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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  1. 1.
    Honigberg BM: Trichomonads of importance in human medicine. In Kreier JP (ed) Parasitic Protozoa (Vol 2). Academic Press, Orlando, FL, 1978, pp 275–454Google Scholar
  2. 2.
    Clark CG, Diamond LS: Colonization of the uterus by the oral protozoan Entamoeba gingivalis. Am J Trop Med Hyg 46:158–160, 1992PubMedGoogle Scholar

Copyright information

© Springer-Verlag New York, Inc. 1995

Authors and Affiliations

  • Dickson D. Despommier
    • 1
  • Robert W. Gwadz
    • 2
  • Peter J. Hotez
    • 3
  1. 1.College of Physicians and SurgeonsColumbia University, Presbyterian HospitalNew YorkUSA
  2. 2.Laboratory of Malaria Research, National Institute of Allergy and Infectious DiseasesNational Institutes of HealthBethesdaUSA
  3. 3.Yale University School of MedicineNew HavenUSA

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