Which of the following exposure carries the maximum risk of transmission of HIV -: (A) Sexual intercourse, (B) Blood transfusion, (C) Trans-placental, (D) Needle prick
Answer is B. HIV transmission Route of Transmission Percentage of total cases Efficiency of route Sexual 87 0.01-1% Blood and blood products 01 >90% Sharing needles/Synringes 02 0.3% Mother to Child transmission 05 30% Ref : park 25th edition Pgno : 364