People with HIV can look and feel healthy for years after infection and may not know that they are infected. They can spread the virus to others through sex and blood.to blood contact even if they do not have any symptoms. When symptoms appear they can be like those of many common illnesses, such as swollen glands, fatigue, weight loss, fever, or diarrhea. These symptoms vary from person to person. Once infected with HIV, a person will always be infected.
Researchers continue to look for additional treatments, and for effective vaccines.