There is currently no vaccine against HIV or AIDS. The only known methods of prevention are based on avoiding exposure to the virus or, failing that, on an antiviral treatment directly after a highly significant exposure. Also, not a single case has been documented in which systemic HIV infection has been cured and even on the theoretical level, no plausible way of eradicating HIV infection has so far been found. Treatment for HIV can suppress viral replication to a degree sufficient to apparently stop disease progression, but success is critically dependent on the patients ability to keep perfect adherence to their drug schedule, which many people will fail to achieve.
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