Why a person suffering from AIDS cannot fight even very minor infections?
Human immunodeficiency virus (HIV) is a retrovirus which infects human beings causing AIDS. AIDS is a disease in which the immune system of the individual gets affected and immunity is reduced. Lymphocytes present in the blood are destroyed by HIV. This makes the infected individuals more vulnerable to other fatal diseases and infections. Hence, infected person's body is not able to fight even minor infections like cold and minor infections can be fatal in this disease.