People who are infected with AIDS has more tendency to acquire multiple infections because the pathogen that causes acquired immunodeficiency syndrome (AIDS) damages the immune system of a patient by destroying the white blood cells that fight infection. If the CD4+ T cell count below 200 cells per µL and presence of specific diseases in association with an HIV infection are observe in an individual, then this could be an indication of having an AIDS.
Moreover, opportunistic infections or cancer may take advantage of a very weak immune system, an individual can develop an influenza-like illness with signs and symptoms that includes swollen lymph nodes, fever, rash, weight loss, diarrhea and cough.