Which of the following is a flocculation test -: (A) Widal test, (B) Weil - felix test, (C) VDRL, (D) Paul - Bunnel test
Answer is C. The VDRL test fur syphilis is an example of slide flocculation. When a drop each of the antigen and the antiserum are placed on a slide and mixed by shaking, floccules appear. Reference:Anathanarayan & paniker's 9th edition, pg no: 106 <\p>