Related Experiment Video
Updated: Aug 8, 2026
09:04
Discovery of New Intracellular Pathogens by Amoebal Coculture and Amoebal Enrichment Approaches
Published on: October 27, 2013
Laboratory diagnosis of amebiasis
1Division of Medical Microbiology, University of British Columbia.
Clinics in Laboratory Medicine
|December 1, 1991
Summary
Accurate diagnosis of amebiasis, particularly Entamoeba histolytica, relies on immediate specimen preservation and examination of stained smears. Serology aids in diagnosing extraintestinal amebiasis, with future diagnostics focusing on cost-effectiveness.
Area of Science:
- Medical Parasitology
- Clinical Diagnostics
- Infectious Diseases
Background:
- Amebiasis diagnosis procedures vary geographically.
- Microscopic examination of preserved specimens is key for differentiating Entamoeba histolytica.
Purpose of the Study:
- To evaluate current diagnostic procedures for amebiasis.
- To identify optimal methods for differentiating E. histolytica from other intestinal amebae.
- To assess the utility of serology and emerging diagnostic technologies.
Main Methods:
- Microscopic examination of concentrated and stained fecal smears.
- Evaluation of fecal material cultivation.
- Assessment of serological diagnostic methods.
- Consideration of antigen detection kits and DNA probes.
Main Results:
- Immediate specimen preservation and examination of stained smears yield satisfactory results for E. histolytica differentiation.
- Fecal cultivation offers limited additional diagnostic yield relative to its cost and time.
- Serology is valuable for diagnosing extraintestinal amebiasis.
Conclusions:
- Microscopy with immediate preservation is the preferred method for intestinal amebiasis diagnosis.
- Serology is a useful adjunct for extraintestinal cases.
- Future diagnostics like antigen detection and DNA probes show promise for improved accuracy and cost-effectiveness.
- Further research is needed on specimen submission guidelines and cost-effectiveness analysis.
Related Concept Videos
01:30Serum Laboratory Studies, Stool Test, Breath Test
Gastrointestinal (GI) diagnostic studies are pivotal in confirming, ruling out, diagnosing, or staging various diseases, including cancers. Following diagnosis, allocating time for discussions with the patient and providing informational resources is crucial. Diagnostic assessments of the GI tract often occur in outpatient settings like endoscopy suites or GI labs. Preparation for these tests may include dietary restrictions, fasting, liquid bowel preparations, laxatives, enemas, and the...
01:12Giardiasis
Giardiasis is a globally prevalent intestinal infection caused by the protozoan parasite Giardia duodenalis (also known as G. lamblia or G. intestinalis). This flagellated protozoan is the most frequently identified intestinal parasite in the United States and worldwide. Transmission primarily occurs via the fecal-oral route, with infection arising from ingestion of water or food contaminated with cysts. Individuals in low-resource settings, international travelers, outdoor enthusiasts, daycare...
01:28Amebiasis
Entamoeba histolytica, a protozoan parasite, is responsible for intestinal and extraintestinal amebiasis. Though a significant proportion of infections remain asymptomatic, approximately 50 million individuals annually are estimated to present with clinical disease, resulting in up to 100,000 deaths globally. The disease burden is disproportionately high in regions with lower socioeconomic status, such as parts of India, Africa, Mexico, and Latin America.Etiology and TransmissionThe infective...