AIDS is a disease of the human immune system caused by the HIV virus. It is a major global health problem that is spreading widely. HIV is transmitted through sexual contact, contaminated blood transfusions, and shared hypodermic needles. From 1986 to 2010, AIDS killed over 12,000 people in Malaysia, most of them men. Highly active antiretroviral therapy has improved life expectancy for those infected with HIV, but many still lack access to testing, treatment, and care. The financial costs of HIV treatment are also significant.