A 30-year-old man presents with a 15-day history of fever and worsening dry cough, headache, and scratchy sore throat. The general appearance is non-toxic. On examination, he has a erythematous tympanic membrane, mild pharyngeal erythema with no exudates, and no cervical lymphadenopathy. Chest auscultation reveals rhonchi and rales scattered over the chest wall. A chest X-ray shows plate-like atelectasis and nodular infiltrate. What is the most likely diagnosis? 1 Viral pneumonia
2 Mycoplasma pneumoniae
3 COPD
4 Bronchiectasis
5 Tuberculosis