- Correspondence to Dr Daniel James Hungerford, Centre for Global Vaccine Research, Institute of Infection and Global Health, University of Liverpool, Liverpool L69 7BE, UK;
- Received August 9, 2019
- Revised September 3, 2019
- Accepted September 3, 2019
- First published September 11, 2019.
If you wish to reuse any or all of this article please use the link below which will take you to the Copyright Clearance Center’s RightsLink service. You will be able to get a quick price and instant permission to reuse the content in many different ways.