Which of the following patients is most at risk for tuberculosis (TB)?

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Patients with acquired immunodeficiency syndrome (AIDS) have weakened immune systems, making them more susceptible to infections such as tuberculosis (TB). TB is a common opportunistic infection in AIDS patients. Patients with lung cancer or chronic airflow limitation may have impaired lung function but generally are not at increased risk for TB. A history of alcohol abuse may weaken the immune system, but it is not a specific risk factor for TB.

Which of the Following Patients Is Most at Risk for Tuberculosis