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Test ID: Echinococcus Antibody
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Echinococcus Antibody
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Useful For
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Semi quantitative determination of specific antibodies to Echinococcus granulosus in human serum.
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Method name and description
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Indirect hemagglutination assay (IHA)
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Specimen type / Specimen volume / Specimen container
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Specimen type: Serum
Specimen volume: 3-5 mL
Specimen container: Serum collected in Yellow top gel tubes
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Collection instructions / Special Precautions / Timing of collection
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Collection by venipuncture as per organization guidelines
No special precautions/ No timing of collection
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Storage and transport instructions
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Maintain specimen at 2-8°C
The specimens should be transported to Virology Section in cold box immediately
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Specimen Rejection Criteria
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Quantity of blood not sufficient
Wrong blood container
Container breakage / sample leaking
Lipemic sample
Grossly hemolyzed serum
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Biological reference intervals and clinical decision values
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No reference
Negative, Positive with titer
Titer < 1:80 Negative (Considered Negative)
Titer < 1:160 Non significant reaction (Repeat after 2-3 weeks)
Titer = 1:160 Doubtful reaction (Repeat the test 2 to 3 weeks later)
Titer ≥ 1:320 Significant reaction in favour of progressive hydatidosis (considered positive)
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Factors affecting test performance and result interpretation
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Certain serums, whose antibody concentration is very high, can give rise to a pro-zone phenomenon (with disappearance of the clouding) in the initial dilutions, which disappears in the subsequent dilutions.
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Turnaround time / Days and times test performed / Specimen retention time
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Turnaround time: within 7 days
Days and times test performed: twice a week.
Specimen retention time: 2 week.
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