conditions are infections caused by  bacteria ,  viruses ,  fungi  and  parasites  ..... Opportunistic infections  are common in people with AIDS. These infections affect nearly every  organ system . people with AIDS mostly have   1- f evers 2-  s weats (particularly at night) 3-swollen glands 4-chills 5-weakness 6- w eight loss  7-pulmonary infection ( Pneumocystis pneumonia )(