About the Authors

Ben Morton

ben.morton@lstmed.ac.uk

Affiliations Department of Clinical Sciences, Respiratory Infection Group, Liverpool School of Tropical Medicine, Liverpoool, United Kingdom, Aintree University Hospitals NHS Foundation Trust, Liverpool, United Kingdom

Shankara Nagaraja

Affiliation Aintree University Hospitals NHS Foundation Trust, Liverpool, United Kingdom

Andrea Collins

Affiliations Department of Clinical Sciences, Respiratory Infection Group, Liverpool School of Tropical Medicine, Liverpoool, United Kingdom, Royal Liverpool University Hospital, Liverpool, United Kingdom

Shaun H. Pennington

Affiliation Department of Clinical Sciences, Respiratory Infection Group, Liverpool School of Tropical Medicine, Liverpoool, United Kingdom

John D. Blakey

Affiliations Department of Clinical Sciences, Respiratory Infection Group, Liverpool School of Tropical Medicine, Liverpoool, United Kingdom, Aintree University Hospitals NHS Foundation Trust, Liverpool, United Kingdom

Competing Interests

BM received a lecture fee from Grifols Inc. AC received lecture fees from GSK and Merck. These affiliations do not alter the authors' adherence to PLOS ONE policies on sharing data and materials.

Author Contributions

Conceived and designed the experiments: BM SN. Performed the experiments: BM SN SHP. Analyzed the data: BM SHP AC JB. Contributed reagents/materials/analysis tools: BM SHP. Wrote the paper: BM SHP AC JB.