[1] Univ Abuja, Dept Vet Publ Hlth & Prevent Med, Abuja, Nigeria
[2] Fed Univ Agr Makurdi, Dept Vet Microbiol, Makurdi, Nigeria
[3] Natl Vet Res Inst, Biotechnol Div, Vom, Nigeria
[4] Univ Jos, Dept Vet Publ Hlth & Prevent Med, Jos, Nigeria
[5] Univ Abuja, Dept Vet Microbiol, Abuja, Nigeria
[6] US Children Fund, Yola, Adamawa State, Nigeria
[7] Ahmadu Bello Univ, Dept Vet Med, Zaria, Nigeria
[8] Nigerian Air Force Hosp, Abuja, Nigeria
[9] Ahmadu Bello Univ, Vet Teaching Hosp, Zaria, Nigeria
[10] Ahmadu Bello Univ, African Ctr Excellence Neglected Trop Dis & Foren, Zaria, Nigeria
[11] Univ British Columbia, Ctr Blood Res, Vancouver, BC, Canada
[12] Univ British Columbia, Dept Pathol & Lab Med, Vancouver, BC, Canada