Regarding, Legionella pneumophila, choose the Incorrect answer. *D. Symptoms of Legionnaires' disease include high fever, chills, shortness of breath, muscle aches while in immunocompromised individuals, it causes severe pneumonia.E. Diagnosis can be done by detection of antigen in urine by ELISA 3 days after onset of symptoms. Test performance is affected by prior use of antibiotics.A. High-risk individuals include people older than 55 years old, high alcohol intake and immunosuppressed patients (Renal transplant recipients, Cancer chemotherapy)B. Legionellae are present mainly in warm, moist environments and not transmitted from person to person, then it attaches to the respiratory mucosa by bacterial protein.C. The bacteria multiply within phagosome until they are numerous, then bacteria are released, and infection of other macrophages then occurs.