HIV/AIDS in Cambodia
After the first case of HIV was detected in Cambodia in 1991, prevalence of infection increased steadily to a high of 2 percent in 1998. In the general population, the prevalence declined to 0.5 percent in 2009, down from 1.2 percent in 2001. Prevalence of HIV infection among women visiting antenatal care (ANC) clinics also declined, from a high of 2.1 percent in 1999 to 1.1 percent in 2006. Among HIV-infected pregnant women, there was also a gradual increase in the percentage who received antiretroviral therapy (ART) to reduce the risk of mother-to-child transmission, from 1.2 percent in 2003 to 11.2 percent in 2007 to 32.3 percent in 2009. The prevalence of HIV/AIDS in Cambodia is among the highest in Asia. Although Cambodia is one of the poorest countries in the world, extraordinary HIV prevention and control efforts exerted by the Royal Government of Cambodia and its partners have helped to reduce the spread of HIV. Between 2003 and 2005, the estimated HIV prevalence among Cambodian adults aged 15 to 49 declined from 2.0 percent to 1.6 percent.
Cambodia’s HIV/AIDS epidemic is spread primarily through heterosexual transmission and revolves largely around the sex trade. HIV transmission occurs mainly in sexual partnerships where one partner has engaged in high-risk behaviors. Women constitute a growing share of people living with HIV/AIDS, comprising an estimated 47 percent of people living with HIV/AIDS in 2003, compared with 37 percent in 1998. This increased proportion of infections among women may reflect declining prevalence rates among males, as well as deaths among males infected in the early years of Cambodia’s epidemic. Significantly, a low prevalence rate in the general population masks far higher prevalence rates in certain sub-populations, such as injecting drug users, people in prostitution, men who have sex with men, karaoke hostesses and beer girls, and mobile and migrant populations.
See also 
HIV/AIDS - adult prevalence rate: 2.6% (2003 est.) HIV/AIDS - people living with HIV/AIDS: 170,000 (2003 est.) HIV/AIDS - deaths: 15,000 (2003 est.) Major infectious diseases: degree of risk: very high food or waterborne diseases: bacterial and protozoal diarrhea, hepatitis A, and typhoid fever vectorborne diseases: dengue fever, Japanese encephalitis, and malaria note: highly pathogenic H5N1 avian influenza has been identified in this country; it poses a negligible risk with extremely rare cases possible among US citizens who have close contact with birds (2008)
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