1. Department of Respiratory Medicine, Cork University Hospital, Cork, Ireland.
2. The APC Microbiome Ireland, University College Cork, Cork, Ireland.
3. The Schools of Medicine and Microbiology, University College Cork, Cork, Ireland.
4. Translational and Clinical Research Institute, Newcastle University, Newcastle upon Tyne, UK.
5. Department of Medicine, McMaster University, Hamilton, ON, Canada.
6. Health Research Board, Clinical Research Facility, University College Cork, Cork, Ireland.