In 1985, the number of new hepatitis B virus diagnoses in injecting drug users was 157, compared to 38 in 2002. The prevalence of HIV was 0.5% among 2,115 injecting drug users during 2004; this rate compares with prevalence of 1.4% to 3.2% in the early to mid-1990s and 0.5% to 0.8% during the period 1998 to 2003....