[1] Nigeria Field Epidemiology and Laboratory Training Programme (NFELTP),Department of Family Medicine
[2] University of Uyo Teaching Hospital Uyo,Department of Community Medicine
[3] Alex Ekwueme Federal University Teaching Hospital,Department of Community Medicine
[4] Ebonyi State,Department of Epidemiology and Medical Statistics
[5] Ministry of Health (SMOH),undefined
[6] Nigeria Centre for Disease Control (NCDC),undefined
[7] Ahmadu Bello University,undefined
[8] University of Ibadan,undefined
[9] African Field Epidemiology Network (AFENET),undefined