Additional file 2: of Prevalence of bovine tuberculosis in cattle, goats, and camels of traditional livestock raising communities in Eritrea GhebremariamMichael MichelA. VernooijJ. NielenM. RuttenV. 2018 Questionnaire for BTB risk factors study within the cattle raising communities in the extensive livestock husbandry system in Eritrea. (PDF 333 kb)