Are dysphagia, ulcers, and red eyes caused by Legionnaires’ disease?

My 17 year old son has a fever and is not responding to 3rd generation cephalosporins (400mg). He suffers from fatigue, headaches, extremely red eyes, cough, throat ulcers, dysphagia, weight loss, and anorexia. Despite giving him a full course of medication (cefspan and levofloxacin), he still has a productive cough and hand tremors. Are these symptoms a result of Legionnaires’ disease, and if so, why is he not responding to treatment?

Perhaps, he doesn’t have Legionnaires’ disease. Red eyes, throat ulcers, dysphagia, and weight loss are not symptoms of Legionnaires’ disease. Moreover, Legionnaires’ disease will respond to levofloxacin.