Aids stands for Acquired Immune Deficiency Syndrome. Acquired means you can catch it. Immune Deficiency means a weakness in the body system that fight diseases.
Syndrome means a group of health problemsthat make up a disease.
Aids is caused by a virus called HIV which stands for Human Immuno deficiency Virus. If you get infected with HIV, your body will try to fight the infection. You can get HIV from anyone who's infected, even if they don't look sick, even if they have not tested positive. Most people think it is a flue. Some people won't be having symptoms.