1. Institute of Translational Medicine, University of Liverpool, Liverpool, United Kingdom
2. St. Paul’s Eye Unit, Royal Liverpool University Hospital, Liverpool, United Kingdom
3. National Institute of Health Research Health Protection Research Unit in Emerging and Zoonotic Infections, University of Liverpool, Liverpool, United Kingdom
4. 34 Military Hospital, Freetown, Sierra Leone
5. Department of Eye and Vision Science, Institute of Ageing and Chronic Disease, University of Liverpool, Liverpool, United Kingdom
6. Connaught Hospital, Freetown, Sierra Leone