Chukwuma D. Umeokonkwo, African Field Epidemiology Network, Liberia, dchukwuma@afenet.net
 H.E. Kpoeh, National Public Health Institute of Liberia, eekpoeh@yahoo.com
Patrick N. Kpanyen, National Public Health Institute of Liberia, pkpanyen@yahoo.com 
Obafemi J. Babalola, African Field Epidemiology Network, Liberia, jbabalola@afenet.net
Himiede W. Wilson-Sesay, African Field Epidemiology Network, Liberia, wwede@afenet.net
Peter Adewuyi, African Field Epidemiology Network, Liberia, padewuyi@afenet.net
Maame Amo-addae, African Field Epidemiology Network, Liberia, mamoaddae@afenet.net