Why is AIDS considered to be a ‘Syndrome’ and not a disease?

HIV AIDS is caused by HIV Virus which enter our body through body fluids such as blood and breast milk or by sexual means. HIV virus spread to lymphnodes and it block our immune system. This creates a condition where our body cannot fight minor diseases like common cold.

A person with HIV can get pneumonia from common cold, minor gut infection may turn into sever diarrhoea. In HIV a person will not have specific symptoms rather he will have a series of infections due hence HIV is called as a syndrome not a disease.