Question

why a person suffering from HIV aids died even do small infection

Answer 1

Because HIV virus destroy our immunity and we are not able to recover it . Mostly AIDS results in death .

Answer 2

acquired immune deficiency syndrome(HIV/AIDS) is a spectrum of conditions caused by infection with the human immunodeficiency virus (HIV).  so his/her bodies control power( immune deficiency power ) is very low . so he/she dide even do small infection.