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January 1994

Assessment of Laboratory Reporting to Supplement Active AIDS Surveillance—Colorado

Arch Dermatol. 1994;130(1):13-14. doi:10.1001/archderm.1994.01690010015001

In January 1993, the surveillance case definition for acquired immunodeficiency syndrome (AIDS) among adolescents (aged greater than or equal to 13 years) and adults was expanded to include human immunodeficiency virus (HIV)-infected persons who have less than 200 CD4+ T-lymphocytes per microliter or a CD4+ Tlymphocyte percentage of total lymphocytes less than 141 or pulmonary tuberculosis, recurrent pneumonia, or invasive cervical cancer. In Colorado, laboratories are required to report positive tests for HIV antibody, and health-care providers are required to report cases of AIDS, HIV-related illness, and HIV infection. In planning for implementation of expanded AIDS survelilance criteria, the Colorado Department of Health (CDH) assessed the usefulness of laboratory reports of CD4+ T-lymphocyte test results as a supplement to existing procedures for active AIDS surveillance in Colorado. In 1993, CDH assessed tests conducted in 1992 at two of the 10 laboratories in the state that perform lymphocyte immunophenotyping. This