U.S. Centers for Disease Control and Prevention

Basic Statistics -- Exposure Categories

HIV/AIDS Surveillance Report
Divisions of HIV/AIDS Prevention

May 13, 1999

The following data are from the CDC semiannual HIV/AIDS Surveillance Report. Numbers are based on AIDS cases reported to CDC through December 31, 1998.

For a more complete understanding of the current surveillance trends, you may download a PDF file of the HIV/AIDS Surveillance Report or request a free copy of the HIV/AIDS Surveillance Report by calling the CDC National Prevention Information Network at 1-800-458-5231.

The term "children" refers to persons under age 13 at the time of diagnosis.

Following is the distribution of reported AIDS cases among adults and adolescents by exposure category. A breakdown by sex is provided where appropriate. The categories and totals are:

**AIDS Cases by Exposure Category**
Exposure Category	Sub-totals	# of AIDS Cases
Men who have sex with men	-	326,051
Injecting drug use	-	-
Male	126,889	-
Female	46,804	-
Total	-	173,693
Men who have sex w/men and inject drugs	-	43,640
Hemophilia/coagulation disorder	-	-
Male	4,663	-
Female	248	-
Total	-	4,911
Heterosexual contact	-	-
Male	23,361	-
Female	43,128	-
Total	-	66,490
Receipt of blood transfusion, blood components, or tissue	-	-
Male	4,784	-
Female	3,598	-
Total	-	8,382
Risk not reported or identified	-	-
Male	41,037	-
Female	15,533	-
Total	-	56,572

The distribution of reported AIDS cases among children by exposure categories follows:

**AIDS Cases Among Children by Exposure Category**
Exposure Category	# of AIDS Cases
Hemophilia/coagulation disorder	234
Mother with or at risk for HIV infection	7,687
Receipt of blood transfusion, blood components, or tissue	378
Risk not reported or identified	162

This article was provided by U.S. Centers for Disease Control and Prevention.

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