- Has any of the following conditions at baseline that may interfere with the diagnosis or response to therapy: chest trauma with severe lung contusion, acute respiratory distress syndrome, empyema, flail chest (severe injury to the chest), history of active lung cancer, chronic bronchitis with an exacerbation within the last 30 days, bronchiectasis (an obstructive lung disease), lung abscess(s), anatomical bronchial obstruction, active pulmonary tuberculosis with treatment, suspected pulmonary tuberculosis, suspected or documented atypical viral pneumonia without bacterial superinfection, suspected or documented pertussis, chemical pneumonitis (eg, aspiration of gastric contents, inhalation injury), or cystic fibrosis