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Cases of HIV Infection by Exposure Category in 2013: Adults and Children

From CDC

Estimated Number of Diagnoses of HIV Infection in Adults, 2013
Transmission Category	Adult and Adolescent Males	Adult and Adolescent Females	Total
Male-to-male sexual contact	30,689	NA	30,689
Injection drug use	1,942	1,154	3,096
Male-to-male sexual contact and injection drug use	1,270	NA	1,270
Heterosexual contact^a	3,887	8,031	11,918
Other^b	99	93	192

^aHeterosexual contact with a person known to have, or to be at high risk for, HIV infection.
^bIncludes hemophilia, blood transfusion, perinatal exposure, and risk factor not reported or not identified.

Estimated number of diagnoses of HIV infection among children aged less than 13 years at the time of diagnosis in the United States, by transmission category
Transmission Category	Estimated Number of Diagnoses of HIV Infection, 2013
Perinatal	107
Other^a	80

^aIncludes hemophilia, blood transfusion, and risk factor not reported or not identified.