Reasons for optimism in respiratory infections.

Nottingham University Hospitals NHS Trust, University of Nottingham, Respiratory Medicine Department, Nottingham, UK Correspondence to Wei Shen Lim, Consultant Respiratory Physician & Honorary Professor of Respiratory Medicine, Nottingham University Hospitals NHS Trust, University of Nottingham, Respiratory Medicine Department, Nottingham NG5 1PB, UK. E-mail: [email protected]