Hydatid Ab

Keywords: Hydatid antibody, Hydatid serology, Echinococcus granulosa serology

Specimen:

5-10 mL blood in plain tube.

Method:

EIA, CFT, IHA, IEP.

Application:

Confirmation of diagnosis of hydatid (Echinococcus granulosus or E. multilocularis) cysts; tests do not distinguish between the two species.

Interpretation:

A positive result on EIA, CFT or IHA testing indicates past or present infection; tests may remain positive even when cysts are non-viable.

False positive and negative results occur.

A positive immunoelectrophoresis ('arc 5') test correlates with active hydatid disease.

Reference:

McManus DP et al. Lancet. 2003; 362: 1295-1304.

Poretti D et al. Am J Trop Med Hyg. 1999; 60: 193-198.