Massachusetts has the 7th highest rate of prison Hepatitis C & HIV infections in the US. In Mass. 27% of men and 44% of women enter prison with Hepatitis C. Specialists think it is due to the high rate of IV drug use in New England. Item of interest, it might be wortwhile to check on your own state.
http://www.boston.com/dailyglobe2/292/metro/Disease_rates_high_in_Mass_prisons+.shtml
http://www.boston.com/dailyglobe2/292/metro/Disease_rates_high_in_Mass_prisons+.shtml