Magbagbeola Dairo, Department of Epidemiology and Medical Statistics, Faculty of Public Health, College of Medicine University of Ibadan, drdairo@yahoo.com.
Olukemi Olugbade, Department of Community Health, Obafemi Awolowo University Teaching Hospitals Complex, Ile-Ife, Nigeria, titilope_nc@yahoo.com
Celestine Ameh, Nigeria Field Epidemiology and Laboratory Training Programme, Abuja, Nigeria, cameh@afenet.net.
Sufiyan Babale, Community Medicine Department College of Medical Sciences, Ahmadu Bello University Zaria, Nigeria,Sufiyanmb@gmail.com 
Olumide Oje-Adetule, Nigeria Field Epidemiology and Laboratory Training Programme, Abuja, Nigeria, olumide.ojeadetule@yahoo.com.
Olayinka Ilesanmi, Nigeria Field Epidemiology and Laboratory Training Programme, Abuja, Nigeria, ileolasteve@yahoo.co.uk.
Muhammad Balogun, African Field Epidemiology Network, Abuja, Nigeria, msbalogun@afenet.net.