1. Department of Paediatrics; College of Medicine; University of Lagos and Lagos University Teaching Hospital; Idi-Araba Lagos Nigeria
2. Department of Paediatric Medicine; Red Cross War Memorial Children's Hospital; School of Child and Adolescent Health; University of Cape Town; Cape Town South Africa
3. Department of Pathology; National Health Laboratory Service; Red Cross War Memorial Children's Hospital; University of Cape Town; Cape Town South Africa
4. Centres for Opportunistic, Tropical and Hospital Infections, and Emerging and Zoonotic Diseases; National Institute for Communicable Diseases; Johannesburg South Africa
5. Wits Research Institute for Malaria; University of the Witwatersrand; Johannesburg South Africa