1. Healthy Homes and Lead Poisoning Prevention Branch, National Center for Environmental Health, Centers for Disease Control and Prevention, Atlanta, Georgia, USA
2. Epidemic Intelligence Service, Centers for Disease Control and Prevention, Atlanta, Georgia, USA
3. Agency for Toxic Substances and Disease Registry, Atlanta, Georgia, USA
4. Guy’s and St Thomas’ NHS Foundation Trust and King’s Health Partners, London, United Kingdom
5. Médecins Sans Frontières, Amsterdam, the Netherlands
6. Nigerian Field Epidemiology and Laboratory Training Program, Abuja, Nigeria
7. Centers for Disease Control and Prevention, Abuja, Nigeria
8. Nigerian Federal Ministry of Health, Abuja, Nigeria
9. Zamfara State Ministry of Health, Gusau, Nigeria