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Basic Statistics
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Unless otherwise noted, the following data are from the CDC HIV/AIDS Surveillance Report: Cases of HIV Infection and AIDS in the United States and Dependent Areas, 2007.

Definitions

HIV Prevalence Estimate

HIV Incidence Estimate

AIDS Cases

AIDS Cases by Age
AIDS Cases by Race/Ethnicity
AIDS Cases by Transmission Category
AIDS Cases by Top 10 States/Dependent Area
Persons Living with AIDS
Deaths of Persons with AIDS

HIV/AIDS Cases

HIV/AIDS Cases by Age
HIV/AIDS Cases by Race/Ethnicity
HIV/AIDS Cases by Transmission Category
Persons Living with HIV/AIDS

State HIV/AIDS Data

International Statistics

Definitions

  • AIDS: This refers to persons diagnosed with AIDS, based on the CDC definition in adults and adolescents and children.
  • HIV/AIDS: This refers to cases of HIV infection, regardless of whether they have progressed to AIDS from the 39 areas (34 states and 5 U.S. dependent areas) that have had confidential name-based HIV infection reporting long enough to monitor trends. According to the number of AIDS cases, these 34 states represent approximately 66% of the epidemic in the 50 states and the District of Columbia.
  • Dependent Areas: American Samoa, Guam, the Northern Mariana Islands, Puerto Rico, and the U.S. Virgin Islands.
  • 34 States and 5 Dependent Areas with Confidential Name-Based HIV Infection Reporting: Alabama, Alaska, Arizona, Arkansas, Colorado, Florida, Georgia, Idaho, Indiana, Iowa, Kansas, Louisiana, Michigan, Minnesota, Mississippi, Missouri, Nebraska, Nevada, New Jersey, New Mexico, New York, North Carolina, North Dakota, Ohio, Oklahoma, South Carolina, South Dakota, Tennessee, Texas, Utah, Virginia, West Virginia, Wisconsin, Wyoming, American Samoa, Guam, the Northern Mariana Islands, Puerto Rico, and the U.S. Virgin Islands.  Learn more about HIV infection reporting.
  • Transmission Category: The classification of a case that indicates the risk factor most likely to have been responsible for transmission. Cases are counted only once in a hierarchy of transmission categories. Persons with more than 1 reported risk factor for HIV infection are classified in the transmission category listed first in the hierarchy. The exception is men who report sexual contact with other men and injection drug use; this group makes up a separate transmission category.
  • HIV Incidence: The number of new HIV infections in a specific population during a specific period of time.
  • HIV Prevalence: The number of people living with HIV/AIDS in a given year.

For more definitions and details about how HIV and AIDS data are tabulated, read the "Technical Notes" from the HIV/AIDS Surveillance Report: Cases of HIV Infection and AIDS in the United States and Dependent Areas, 2007.

For additional details on HIV/AIDS surveillance, viewLink to non-CDC web site the Kaiser Family Foundation tutorial: Understanding HIV/AIDS Surveillance Data in the United States.

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HIV Prevalence Estimate

Prevalence is the number of people living with HIV infection at the end of a given year.

At the end of 2006, an estimated 1,106,400 persons (95% confidence interval 1,056,400-1,156,400) in the United States were living with HIV infection, with 21% undiagnosed.1

For more information see "HIV/AIDS in the United States."

1CDC. HIV Prevalence Estimates—United States, 2006. MMWR 2008;57(39):1073-76.

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HIV Incidence Estimate

Incidence is the number of new HIV infections that occur during a given year.

In 2008, CDC estimated that approximately 56,300 people were newly infected with HIV in 20061  (the most recent year that data are available). Over half (53%) of these new infections occurred in gay and bisexual men. Black/African American men and women were also strongly affected and were estimated to have an incidence rate than was 7 times as high as the incidence rate among whites. Visit the HIV incidence page for more details.

1Hall HI, Ruiguang S, Rhodes P, et al. Estimation of HIV incidence in the United States. JAMA. 2008;300:520-529.

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AIDS Cases

In 2007, the estimated number of persons diagnosed with AIDS in the United States and dependent areas was 37,041. Of these, 35,962 were diagnosed in the 50 states and the District of Columbia and 812 were diagnosed in the dependent areas.  In the 50 states and the District of Columbia, adult and adolescent AIDS cases totaled 35,934 with 26,355 cases in males and 9,579 cases in females, and 28 cases estimated in children under age 13 years. 

The cumulative estimated number of diagnoses of AIDS through 2007 in the United States and dependent areas was 1,051,875. Of these, 1,018,428 were diagnosed in the 50 states and the District of Columbia and 32,051 were diagnosed in the dependent areas.  In the 50 states and the District of Columbia, adult and adolescent AIDS cases totaled 1,009,220 with 810,676 cases in males and 198,544 cases in females, and 9,209 cases estimated in children under age 13 years.

These numbers do not represent reported case counts. Rather, these numbers are point estimates, which result from adjustments of reported case counts. The reported case counts have been adjusted for reporting delays and for redistribution of cases in persons initially reported without an identified risk factor, but not for incomplete reporting.

Totals include persons of unknown race or multiple races, persons of unknown sex, and persons of unknown state of residence.  Because totals were calculated independently of the values for the subpopulations, subpopulation values may not equal the totals.

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AIDS Cases by Age

Of the estimated number of persons diagnosed with AIDS in the 50 states and the District of Columbia, persons’ ages at time of diagnosis were distributed as follows.

Age (Years) Estimated # of AIDS Cases in 2007 Cumulative Estimated # of AIDS Cases, Through 2007*
Under 13 28 9,209
Ages 13-14 80 1,169
Ages 15-19 455 6,089
Ages 20-24 1,927 38,175
Ages 25-29 3,380 120,464
Ages 30-34 4,187 201,906
Ages 35-39 5,888 219,601
Ages 40-44 6,813 177,250
Ages 45-49 5,749 112,896
Ages 50-54 3,636 63,408
Ages 55-59 2,040 34,160
Ages 60-64 980 18,249
Ages 65 or older 800 15,853
*Includes persons with a diagnosis of AIDS from the beginning of the epidemic through 2007.

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AIDS Cases by Race/Ethnicity

CDC tracks HIV/AIDS information on six racial and ethnic groups: American Indian/Alaska Native; Asian; Black/African American; Hispanic/Latino; Native Hawaiian/Other Pacific Islander; and White.

Estimated numbers of AIDS cases in the 50 states and the District of Columbia, by race or ethnicity:

Race or Ethnicity Estimated # of AIDS Cases in 2007 Cumulative Estimated # of AIDS Cases, Through 2007*
American Indian/Alaska Native 158 3,492
Asiana 475 7,511
Black/African American 17,507 426,003
Hispanic/Latinob 6,921 169,138
Native Hawaiian/Other Pacific Islander 76 721
White 10,407 404,465
*Includes persons with a diagnosis of AIDS from the beginning of the epidemic through 2007.
aIncludes Asian/Pacific Islander legacy cases.
bHispanics/Latinos can be of any race.

For more details on HIV/AIDS and race/ethnicity, see CDC's Populations/Surveillance fact sheets.

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AIDS Cases by Transmission Category

Six common transmission categories are male-to-male sexual contact, injection drug use, male-to-male sexual contact and injection drug use, high-risk heterosexual (male-female) contact, mother-to-child (perinatal) transmission, and other (includes blood transfusions and unknown cause).

Following is the distribution of the estimated number of cases of AIDS among adults and adolescents by transmission category in the 50 states and the District of Columbia. A breakdown by sex is provided where appropriate.
 

Transmission Category Estimated # of AIDS Cases, in 2007
Adult and Adolescent Male Adult and Adolescent Female Total
Male-to-male sexual contact 16,749 - 16,749
Injection drug use 3,750 2,260 6,010
Male-to-male sexual contact and injection drug use 1,664 - 1,664
High-risk heterosexual contact* 4,011 7,100 11,111
Other** 181 220 401
*Heterosexual contact with a person known to have, or to be at high risk for, HIV infection.
** Includes hemophilia, blood transfusion, perinatal exposure, and risk not reported or not identified.

 
Transmission Category Estimated # of AIDS Cases, Through 2007*
Adult and Adolescent Male Adult and Adolescent Female Total
Male-to-male sexual contact 487,695 - 487,695
Injection drug use 175,704 80,155 255,859
Male-to-male sexual contact and injection drug use 71,242 - 71,242
High-risk heterosexual contact** 63,927 112,230 176,157
Other*** 12,108 6,158 18,266
*Includes persons with a diagnosis of AIDS from the beginning of the epidemic through 2007.
**Heterosexual contact with a person known to have, or to be at high risk for, HIV infection.
*** Includes hemophilia, blood transfusion, perinatal exposure, and risk not reported or not identified.

The distribution of the estimated number of cases of AIDS, among children* in the 50 states and the District of Columbia, by transmission categories was:

Transmission Category

Estimated # of AIDS Cases in 2007 Cumulative Estimated # of AIDS Cases Through 2007**
Perinatal 24 8,434
Other*** 4 775
*The term "children" refers to persons under age 13 years at the time of diagnosis.
** Includes persons with a diagnosis of AIDS from the beginning of the epidemic through 2007.
***Includes hemophilia, blood transfusion, and risk not reported or not identified.

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AIDS Cases by Top 10 States/Dependent Areas

The 10 states or dependent areas reporting the highest number of AIDS cases were:

State/Dependent Area # of AIDS Cases in 2007
California 4,952
New York 4,810
Florida 3,961
Texas 2,964
Georgia 1,877
Pennsylvania 1,750
Maryland 1,394
Illinois 1,348
New Jersey 1,164
North Carolina 1,024

 

State/Dependent Area # of Cumulative AIDS Cases Through 2007*
Adults or Adolescents Children (<13) Total
New York 179,116 2,345 181,461
California 148,274 675 148,949
Florida 107,980 1,544 109,524
Texas 72,434 394 72,828
New Jersey 49,907 787 50,694
Pennsylvania 35,120 369 35,489
Illinois 34,783 283 35,066
Georgia 33,607 240 33,847
Maryland 31,611 320 31,931
Puerto Rico 30,333 403 30,736
*Includes persons with a diagnosis of AIDS from the beginning of the epidemic through 2007.

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Persons Living with AIDS

At the end of 2007, the estimated number of persons living with AIDS in the United States and dependent areas was 468,578. In the 50 states and the District of Columbia, this included 454,747 adults and adolescents, and 889 children under age 13 years.

Totals include persons of unknown race or multiple races, persons of unknown sex, and persons of unknown state of residence.  Because totals were calculated independently of the values for the subpopulations, subpopulation values may not equal the totals.

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Deaths of Persons with AIDS

In 2007, the estimated number of deaths of persons with AIDS in the United States and dependent areas was 14,561. In the 50 states and the District of Columbia, this included 14,105 adults and adolescents, and 5 children under age 13 years.

The cumulative estimated number of deaths of persons with AIDS in the United States and dependent areas, through 2007, was 583,298. In the 50 states and the District of Columbia, this included 557,902 adults and adolescents, and 4,891 children under age 13 years.

Totals include persons of unknown race or multiple races, persons of unknown sex, and persons of unknown state of residence.  Because totals were calculated independently of the values for the subpopulations, subpopulation values may not equal the totals.

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HIV/AIDS Cases

In 2007, the estimated number of cases of HIV/AIDS diagnosed in the 34 states and 5 dependent areas with confidential name-based HIV infection reporting was 44,084. Of these, 42,655 were in the 34 states and 1,429 were in the 5 dependent areas.  In the 34 states, adult and adolescent HIV/AIDS cases totaled 42,495 with 31,518 cases in males and 10,977 cases in females, and 159 cases estimated in children under age 13 years. 

These numbers do not represent reported case counts. Rather, these numbers are point estimates, which result from adjustments of reported case counts. The reported case counts have been adjusted for reporting delays and for redistribution of cases in persons initially reported without an identified risk factor, but not for incomplete reporting.

Totals include persons of unknown race or multiple races, persons of unknown sex, and persons of unknown state of residence.  Because totals were calculated independently of the values for the subpopulations, subpopulation values may not equal the totals.

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HIV/AIDS Cases by Age

Of the estimated number of HIV/AIDS cases diagnosed in the 34 states with confidential name-based HIV infection reporting, persons’ ages at time of diagnosis were distributed as follows.

Age (Years)

Estimated Number of HIV/AIDS Cases in 2007

Under 13 159
Ages 13-14 40
Ages 15-19 1,703
Ages 20-24 4,907
Ages 25-29 5,771
Ages 30-34 5,089
Ages 35-39 6,088
Ages 40-44 6,554
Ages 45-49 5,172
Ages 50-54 3,489
Ages 55-59 1,938
Ages 60-64 942
Ages 65 or older 803

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HIV/AIDS Cases by Race/Ethnicity

CDC tracks HIV/AIDS information on six racial and ethnic groups: American Indian/Alaska Native; Asian; Black/African American; Hispanic/Latino; Native Hawaiian/Other Pacific Islander; and White.

Estimated numbers of HIV/AIDS diagnosed in the 34 states with confidential name-based HIV infection reporting, by race or ethnicity:

Race or Ethnicity Estimated # of HIV/AIDS Cases in 2007
American Indian/Alaska Native 228
Asiana 455
Black/African American 21,549
Hispanic/Latinob 7,484
Native Hawaiian/Other Pacific Islander 46
White 12,556
aIncludes Asian/Pacific Islander legacy cases.
bHispanics/Latinos can be of any race.

For more details on HIV/AIDS and race/ethnicity, see CDC's Populations/Surveillance fact sheets.

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HIV/AIDS Cases by Transmission Category

Six common transmission categories are male-to-male sexual contact, injection drug use, male-to-male sexual contact and injection drug use, high-risk heterosexual (male-female) contact, mother-to-child (perinatal) transmission, and other (includes blood transfusions and unknown cause).

Following is the distribution of the estimated number of cases of HIV/AIDS diagnosed among adults and adolescents in the 34 states with confidential name-based HIV infection reporting, by transmission category. A breakdown by sex is provided where appropriate.
 

Transmission Category Estimated # of HIV/AIDS Cases, in 2007
Adult and Adolescent Male Adult and Adolescent Female Total
Male-to-male sexual contact 22,472 - 22,472
Injection drug use 3,133 1,806 4,939
Male-to-male sexual contact and injection drug use 1,260 - 1,260
High-risk heterosexual contact* 4,551 9,076 13,627
Other** 102 96 198
*Heterosexual contact with a person known to have, or to be at high risk for, HIV infection.
** Includes hemophilia, blood transfusion, perinatal exposure, and risk not reported or not identified.

The distribution of the estimated number of cases of HIV/AIDS diagnosed among children* in the 34 states with confidential name-based HIV infection reporting, by transmission categories, follows.

Transmission Category Estimated # of HIV/AIDS Cases in 2007
Perinatal 139
Other** 20
*The term "children" refers to persons under age 13 years at the time of diagnosis.
**Includes hemophilia, blood transfusion, and risk not reported or not identified.

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Persons Living with HIV/AIDS

At the end of 2007, the estimated number of persons living with HIV/AIDS in the 34 states and 5 dependent areas with confidential name-based HIV/AIDS infection reporting was 571,378. In the 34 states only, this included 549,196 adults and adolescents, and 2,736 children under age 13 years.

These numbers do not represent reported case counts. Rather, these numbers are point estimates, which result from adjustments of reported case counts. The reported case counts have been adjusted for reporting delays.

Totals include persons of unknown race or multiple races, persons of unknown sex, and persons of unknown state of residence.  Because totals were calculated independently of the values for the subpopulations, subpopulation values may not equal the totals.

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State-by-State HIV/AIDS Data

  • NCHHSTP State Profiles
  • Statehealthfacts.orgLink to non-CDC web site provides state-by-state information about new and cumulative AIDS cases, AIDS case rates, persons living with AIDS, AIDS deaths, HIV infections, HIV testing statistics and policies, additional AIDS-related state policies, Ryan White funding and funding for HIV prevention, and AIDS Drug Assistance Programs, including budget, client, and expenditure data from the Kaiser Family Foundation.

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International Statistics

For the most up-to-date information on international HIV and AIDS statistics, visit the Joint United Nations Programme on HIV/AIDS.

For current statistics on the number of reported AIDS cases in North, Central, and South America, please contact the Pan American Health Organization (PAHO)Link to non-CDC web site which is the regional office for the Americas of the World Health Organization at 525 23rd Street, N.W., Washington, D.C. 20037, telephone: 202-861-4346.

Other international Web sites available are the World Health Organization (WHO)Link to non-CDC web site and the United States Agency for International Development (USAID).

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Last Modified: February 26, 2009
Last Reviewed: February 26, 2009
Content Source:
Divisions of HIV/AIDS Prevention
National Center for HIV/AIDS, Viral Hepatitis, STD, and TB Prevention
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