“…To assess this, extensive HIV testing was done in prisons and jails in the U.S.; rates were highest along the Eastern seaboard (approaching the rates noted above that might trigger an explosive spread of an HIV epidemic) and the South, with rates lowest in the Midwest and Western states. 6,[14][15][16][17][18][19][20][21][22][23][24][25][26][27][28][29][30] As single seroprevalence surveys might not capture possible increasing rates over time, several longitudinal studies were performed, and reassuringly, all showed essentially stable or modest increase in rates of HIV infection among entrants into prison. 12,14,15,[27][28][29][30] For example, during the months of April through June 1985June , 1986June , 1987June and 1988, sera obtained from consecutive male entrants to the Maryland Division of Correction was assayed for antibody to HIV-1; the rate of HIV-1 infection among male entrants was 7.0, 7.7, 7.0, and 8.1%, respectively 12,14 ; factors associated with HIV infection on entry into prison included being 925 years old, being African American, using injection drugs (ascertained by history and observation of needle-track marks), and being from urban as opposed to suburban/rural areas of the state.…”