Skin test useful in hydatid disease is
Correct Answer: Casoni's test
Description: casoni's test It is an immediate hypersensitivity skin test introduced by casoni using fresh sterile hydatid fluid. The antigen in hydatid fluid is collected from animal or human cysts and is sterilised by seitz or membrane filtration. The fluid is injected intradermally in one arm and an equal volume of saline as control is injected in other aarm. In a positive reaction ,a large wheal of about 5 cm in diameter with multiple pseudopodia appears within half an hour at the test side and fades in about an hour. Ref : panickers textbook of medical parasitology 8th edition page 134
Category:
Microbiology
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