What is Elek?s test ?
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Answer / guest
Antitoxin which has been impregnated in a strip of sterile
filter paper is placed on the surface of the agar medium
after a heavy inoculum is streaked at right angles to the
position of the paper strip, and allowed to incubate for 24
hours. If the organism is toxigenic, a visible line of Ag-
Ab precipitate will form.
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Answer / mithun manjunath
By using Elek?s test, Vero cell toxicity, and polymerase
chain reaction for toxigene, this strain of C. ulcerans was
proven to produce diphtheria toxin identical to C.
diphtheriae.
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Micro Biology 
