Investigation of choice for invasive amebiasis is:
Answer is B (ELISA) In Extra-intestinal amebiasis, antibody detection by ELISA is the most sensitive test - Ghai 5th/221. ELISA : This test is positive in more than 90% of patients and it usually reves to normal with in 6-12 months. IHA : May also be done in invasive Amoebiasis or liver abscess. The interpretation of the IHA is however more difficult because titres may remain positive for as long as 10 years.
Indirect heamagglutination
ELISA
Counter immune electrophoresis
Microscopy