People infected with HIV may look and feel healthy for a long time. They may look and feel healthy for years after becoming infected. They may not know they are infected. Even if they don't look or feel sick, they can infect others. When signs of illness do appear, they vary from person to person.
Some people get fevers or diarrhea.
Most people get swollen glands that won't clear up. Many lose weight for no apparent reason. When people develop AIDS, they may have illnesses that healthy people would usually resist. Unlike many other viruses, HIV is not spread through the air or water. HIV is not spread through everyday casual contact.