Examples of type 1 hypersensitivity is –
Correct Answer: Casoni's test
Description: Casoni test : it is an immediate hypersensitivity skin test. - sterile hydatid fluid is used as antigen. 0.2 ml of this antigen is injected intradermally in onearm. Sterile normal saline 0.2ml is injected intradermally in the other arm which acts as control. In positive cases, tested site develop a large wheal of 5 cm diameter or more with multiple pseudopodia. Reference :Baveja medical parasitology, third edition, Pg no:107 <p>
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Microbiology
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