A community health nurse is assessing a migrant farmer who raises chickens and has a cough, fever, dyspnea, and hemoptysis. Which infection should be suspected?

• A. Lyme disease
• B. Toxoplasmosis
• C. Tuberculosis
• D. Histoplasmosis

Answer: (D)

Exposure to soil enriched with bird droppings from poultry farming points toward a histoplasma infection. Histoplasma capsulatum is a fungus that thrives in environments with bird or bat droppings; inhaling its spores from chicken coops or barns can cause a pulmonary illness that presents with cough, fever, shortness of breath, and even hemoptysis. This pattern fits well with a migrant farmer who handles chickens, because the inhaled spores trigger pulmonary disease that can mimic other infections like tuberculosis. While other infections can cause similar respiratory symptoms, the occupational clue of handling poultry and exposure to chicken droppings makes histoplasmosis the most likely diagnosis in this scenario.