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What is PK reactio detects - and explain in detail?
The Prausnitz-Kustner test (PK test, Prausnitz-Kustner reaction) is an immunologic test formerly used by physicians to determine if a patient has an allergic reaction to a specific antigen i.e, IgE Ref: Ananthanarayan & Parkers textbook of microbiology 9th edition pg:98