What is the outpatient drug-free treatment? a. a treatment method that consists of group and individual counseling sessions for people recovering from drug abuse, without medication b. a treatment method where people recovering from drug abuse live together and learn to adjust to their new drug-free lives c. a treatment method that involves replacing the abused drug with a substitute that has fewer harmful effects felicia poked herself while disposing of a needle that she had just used to administer medication to a patient. she was later tested for infection from this needle stick and tested positive for human immunodeficiency virus (hiv). in this scenario, the needle stick was what link in the chain of transmission? a. susceptible host b. infectious agent c. portal of entry d. reservoir e. portal of exit