It is becoming increasingly clear that human immunodeficiency virus ( HIV) infection, either independently or in concert with opportunistic infections like pulmonary tuberculosis, is a risk factor for the development of chronic airflow limitation. In the majority of patients the etiology of this obstructive ventilatory defect is multifactorial. Post-infectious obliterative bronchiolitis, post-tuberculous lung damage (including bronchiectasis), immune reconstitution and the direct effects of HIV viral infection may all play a role. With increases in life expectancy and decreases in infectious complications in patients taking antiretroviral medications, the importance of HIV-associated chronic lung disease as a cause of pulmonary disability is likely to increase. This is particularly relevant in regions like sub- Saharan Africa, where both HIV infection and tuberculosis are highly prevalent. Here, to illustrate the complexity of this interaction, we present the case of a 15-year-old girl with vertically acquired HIV infection, multiple episodes of pulmonary infection, and severe airflow obstruction. [ABSTRACT FROM AUTHOR]