Original sentence: Common opportunistic infections and tumors, most of which are normally controlled by robust CD4+ T cell-mediated immunity then start to affect the patient.Typically, resistance is lost early on to oral Candida species and toMycobacterium tuberculosis, which leads to an increased susceptibility to oral candidiasis(thrush) and tuberculosis
Edited sentence: Common opportunistic infections and tumors, most of which are normally controlled by robust CD4+ T cell-mediated immunity then start to affect the patient.Typically, resistance is lost early on to oral Candida species and to Mycobacterium tuberculosis, which leads to an increased susceptibility to oral candidiasis(thrush) and tuberculosis