MMWR: Syringe Exchange Programs — United States, 2008

Persons who inject drugs should use a new, sterile needle and syringe for each injection. Syringe exchange programs (SEPs) provide free sterile syringes and collect used syringes from injection-drug users (IDUs) to reduce transmission of bloodborne pathogens, including human immunodeficiency virus (HIV), hepatitis B virus, and hepatitis C virus (HCV).

Source: http://www.cdc.gov/mmwr/preview/mmwrhtml/mm5945a4.htm?s_cid=mm5945a4_e

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