HIV + 30 Year Old diagnosed with Pneumonia Case Study Discussion DISCUSSION POST In this case study, the 30-year old patient has a history of IV drug use, is HIV+, and is diagnosed with pneumonia. According to Capriotti and Frizzell (2017), HIV mainly infects CD4 cells, which are called helper T cells. CD4 cells play an important role in the human immune system by influencing all other cells of the immune system, including other T cells, B lymphocytes, macrophages, and NK cells (Capriotti & Frizzell, 2017). Additionally, CD4 cells are key players in cell-mediated immunity and are also involved […]