A 20 year old male with history of fever and enlarged lymphnodes and sore throat, suspected to have infections mononucleosis and was ordered a Paul Bunnel test. What is the principle of the test:: (A) Heterophile agglutination test, (B) Neutralization test, (C) Complement fixation test, (D) Agglutination reaction
Answer is A. Ans. (a) i.e. Heterophile agglutination test