<prompt> The chance that a health worker gets HIV from an accidental needle prick is -11095100  <response>: Ans. is a i.e., 1 Common modes of transmission of HIV and their relative riskTypes of exposureApproximate chance of infection per exposureI Sexual intercourse: anal, vaginal, oral01-10II Blood and blood products. Factor VII etc. Blood transfusion 90III Tissue and organ donation, semen, cornea, bone marrow, kidney etc.50-90IV Injections and injuries shared needles by drug addicts Injections with unsterile Needle-stick and other injuries in health staff? Surgical wounds0-5-10V Mother to baby :TransplacentalAt birthAfter birthBreast milk30 