Preventing AIDS primarily involves preventing HIV infection through various strategies. These include practicing safe sex by using condoms, getting tested regularly for HIV, and using pre-exposure prophylaxis (PrEP) for high-risk individuals. Additionally, harm reduction strategies such as needle exchange programs can significantly lower the risk of transmission among intravenous drug users. For those already living with HIV, antiretroviral therapy (ART) is crucial in managing the virus, allowing individuals to maintain a healthy immune system and reduce the viral load to undetectable levels, which effectively eliminates the risk of transmission to sexual partners. Education and awareness are key components in both prevention and management efforts.