This the virus that causes AIDS, and interferes with the body's ability to fight infections.

Flu-like symptoms such as  fever, sore throat and fatigue can occur.

Once it progresses to AIDS the symptoms include weight loss, fever or night sweats, fatigue and recurrent infections.

No cure exists for AIDS, but strict adherence to antiretroviral regimens (ARVs) can dramatically slow the disease's progress as well as prevent secondary infections and complications.

Preventive measures include:Abstinence,Being Faithful to one uninfected partner, Correct and consistent condom use.