1995a-250 1998g-314 administration adverseeffects aids(disease) chlorineandderivativesasdisinfectants complications control disinfectants distribution drugabuse habitus(sociology) healthaspects hivinfections intravenous intravenousdrugabusers needle-exchangeprograms needleexchangeprograms needlesharing organization prevention publichealth publicspaces socialaspects substanceabuse supply transmission unitedstates