Global
In 2007, 33 million people were living with HIV/AIDS globally.
AIDS is the leading cause of death in Sub-Saharan Africa and the fourth leading cause of death worldwide.
In 2007, 2.1 million adults and children died from AIDS.
Young people, age 15-24, account for 45% of all new HIV infections.
Women represent half of all people living with HIV/AIDS.
Globally, men who have sex with men (MSM) are 19 times more likely to be infected with HIV than the general population.
United States
There were an estimated 56,300 new HIV infections in the US in 2006. An estimated 21% (232 000) of people living with HIV are undiagnosed.
African Americans accounted for 46.1% of the estimated number of persons living with HIV yet they made up 12% of the US population. 34.6% of the HIV-infected population were white and 17.5% were Hispanic.
Nearly half (48.1%) of all HIV cases in the United States are attributable to men who have sex with men (MSM).
Injecting drug use accounts for 18.5% of HIV-infections. IDU-associated infections (including HIV) have decreased by about 80% since the mid- to late-90s.
California
California has the second highest HIV/AIDS incidence rate in the United States after New York.
An estimated 160,000 people were living with HIV in the state of California at the end of 2006, including all of those with and without AIDS and those who do not know they are infected.
Over two-thirds of all of those in California living with HIV reside in Los Angeles County or the San Francisco Bay Area.
0.7% of inmates in California prisons were known to be HIV positive in 2005.
11.9% of all people living with HIV/AIDS in California are women.
Los Angeles
An estimated 2,000 people in Los Angeles will become infected with HIV this year.
Nearly 30,000 have died in Los Angeles of AIDS since the epidemic's beginning.
An estimated 58,000 currently live with HIV. Nearly 46% of California's total cumulative HIV/AIDS diagnoses have occurred in Los Angeles. 71% of those living with AIDS are gay or bisexual men.
Although African Americans comprise only 9.6% of the city's population, they account for nearly 21% of those living with AIDS.
San Francisco
Of the 27,592 cumulative AIDS cases in San Francisco at the end of 2007, 95% were among males, 4% were among females and 1% among transgender persons.
Three-quarters of HIV/AIDS cases were among MSM, 15 % were among MSM who were also IDU and 8% were among IDU (excluding MSM).
Non-Hispanic whites accounted for 54% of cumulative HIV/AIDS cases followed by African Americans (13%) and Latinos (12%).
There were an estimated 965 new HIV infections in San Francisco in 2006.
In 2007, there were 467 newly diagnosed HIV cases in San Francisco (a new "diagnosis" does not necessarily mean a new infection) -- 89% among men, 8% among women and 3% among transgender persons. 78% of these cases were among individuals 25-49 years of age.
88-93% of HIV-infected individuals in San Francisco are receiving anti-retroviral therapy (ART). ART use was slightly lower among females, transgender persons, African Americans and Latinos.