1 Swiss Tropical and Public Health Institute, Kreuzstrasse 2, Allschwil 4123, Switzerland; University of Basel, Petersplatz 1, Basel CH-4003, Switzerland. Electronic address: [email protected].
2 Department of Public Health, College of Medical Sciences, University of Calabar, Calabar, Nigeria.
3 Department of Biology, College of Art & Sciences, Xavier University, Cincinnati, OH 45247, USA.
4 Swiss Tropical and Public Health Institute, Kreuzstrasse 2, Allschwil 4123, Switzerland; University of Basel, Petersplatz 1, Basel CH-4003, Switzerland. Electronic address: [email protected].
5 Swiss Tropical and Public Health Institute, Kreuzstrasse 2, Allschwil 4123, Switzerland; University of Basel, Petersplatz 1, Basel CH-4003, Switzerland.
6 Independent Consultant & Senior Research Fellow, 3ie, c/o LIDC, 20 Bloomsbury Square, London WC1A 2NS, UK.
7 Swiss Tropical and Public Health Institute, Kreuzstrasse 2, Allschwil 4123, Switzerland; University of Basel, Petersplatz 1, Basel CH-4003, Switzerland. Electronic address: [email protected].
8 Faculty of Medicine, College of Medical Sciences, University of Calabar, Calabar, Nigeria.
9 Swiss Tropical and Public Health Institute, Kreuzstrasse 2, Allschwil 4123, Switzerland; University of Basel, Petersplatz 1, Basel CH-4003, Switzerland. Electronic address: [email protected].