ALLY HUSSEIN, Tanzania Field Epidemiology and Laboratory Training Program, Dar es Salaam, Tanzania , allykhussein@gmail.com
GEOFREY MCHAU, Tanzania Food and Nutrition Centre, Dar es Salaam, Tanzania, mchau80@gmail.com
DOREEN KAMORI, Department of Microbiology and Immunology, Muhimbili University of Health and Allied Sciences, Dar es Salaam, Tanzania, doreenkamori@gmail.com