Integrated human-animal sero-surveillance of Brucellosis in the pastoral Afar and Somali regions of Ethiopia. oleh Rea Tschopp, Ashenafi Gebregiorgis, Yayehyirad Tassachew, Henok Andualem, Mahlet Osman, Mulugeta Waji Waqjira, Jan Hattendorf, Abdulkadir Mohammed, Muhammed Hamid, Wassie Molla, Simeneh Awoke Mitiku, Henry Walke, Maria Negron, Melissa Kadzik, Gezahegne Mamo