1. Foundation for Professional Development, Research Unit, East London, South Africa
2. Faculty of Health Sciences, Department of Medical Microbiology, University of Pretoria, Pretoria, South Africa
3. Department of Medical Microbiology, Maastricht University Medical Centre, CAPRHI School of Public Health & Primary Care, Maastricht, The Netherlands
4. Department of Ophthalmology, Ghent University, Gent, Belgium
5. Department of Ophthalmology, University of Tuebingen, Tübingen, Germany
6. Department of Ophthalmology, Massachusetts Eye and Ear, Boston, Massachusetts, USA
7. Department of Ophthalmology, Harvard Medical School, Boston, Massachusetts, USA
8. MCM Eye Unit, MyungSung Christian Medical Center and MyungSung Medical School, Addis Ababa, Ethiopia