1. Infosmart Research and Consulting Tanzania, Dar es Salaam, Tanzania
2. Centers for Disease Control and Prevention (CDC), Atlanta, GA, USA
3. National Institute for Medical Research Muhimbili Research Centre, Dar es Salaam
4. CDC Tanzania, Dar es Salaam
5. Community Development, Gender, Elderly and Children; National Tuberculosis and Leprosy Programme, Tanzania Ministry of Health, Dar es Salaam, Tanzania