Results revealed 3 positive HIV antibody tests, for a rate of 1.6 per 1,000. In addition, more than 90 percent of the minors interviewed were sexually active, with small percentages occasionally engaging in homosexuality, rectal sex, or both. Casual sex was common, and condom use was rare. Half of the youths reported drug abuse, and 10 percent reported intravenous drug use. Ninety percent were aware of AIDS, and 50 percent considered themselves to be at risk. About 75 percent wished to be tested for HIV infection. Findings indicate that mass HIV screening is not justified. however, these youths appear to be at an unusually high risk for HIV infection. Therefore, emphasis should be placed on voluntary or medically indicated HIV antibody testing as well as education and counseling programs to prevent high- risk behavior among incarcerated youths. Tables and 12 references