RT Journal A1 Smith DA, Smith L T1 THe isolation of hiv- positive patients JF JAMA JO JAMA YR 1989 FD July 14 VO 262 IS 2 SP 208 OP 208 DO 10.1001/jama.1989.03430020050018 UL http://dx.doi.org/10.1001/jama.1989.03430020050018 AB To the Editor.—  We read with interest the March 17 JAMA article by Dr Gostin1 entitled "Public Health Strategies for Confronting AIDS [acquired immunodeficiency syndrome]" and felt a need to share with you a problem related to quarantining AIDS patients in state mental hospitals.The prevalence of human immunodeficiency virus seropositivity (enzymelinked immunosorbent assay and Western blot test positivity) among hospitalized patients in a study of sentinel hospitals throughout the country was 0.3%.2 The prevalence of positivity among all patients tested through the South Dakota Health Department's laboratory during 1988 was 0.32% (R. Louchart, RN, personal communication, February 1989).The South Dakota Human Services Center, with a census of nearly 430 patients, is the sole general psychiatric hospital in the state. Staff physicians there did no routine testing for AIDS during 1988, but rather performed enzyme-linked immunosorbent assays on patients deemed to be at high risk. High-risk status