Research Communication

Molecular characterisation of infectious bursal disease virus in Namibia, 2017

Umberto Molini, Gottlieb Aikukutu, Juliet Kabajani, Siegfried Khaiseb, Giovanni Cattoli, William G. Dundon
Onderstepoort Journal of Veterinary Research | Vol 86, No 1 | a1676 | DOI: https://doi.org/10.4102/ojvr.v86i1.1676 | © 2019 Umberto Molini, Gottlieb Aikukutu, Juliet Kabajani, Siegfried Khaiseb, Giovanni Cattoli, William G. Dundon | This work is licensed under CC Attribution 4.0
Submitted: 01 August 2018 | Published: 04 July 2019

About the author(s)

Umberto Molini, Department of Pathobiology, School of Veterinary Medicine, Faculty of Agriculture and Natural Resources, University of Namibia, Neudamm Campus, Namibia
Gottlieb Aikukutu, Central Veterinary Laboratory, Windhoek, Namibia
Juliet Kabajani, Animal Production and Health Laboratory, Joint FAO/IAEA Division of Nuclear Techniques in Food and Agriculture, International Atomic Energy Agency, Siebersdorf, Austria
Siegfried Khaiseb, Central Veterinary Laboratory, Windhoek, Namibia
Giovanni Cattoli, Animal Production and Health Laboratory, Joint FAO/IAEA Division of Nuclear Techniques in Food and Agriculture, International Atomic Energy Agency, Siebersdorf, Austria
William G. Dundon, Animal Production and Health Laboratory, Joint FAO/IAEA Division of Nuclear Techniques in Food and Agriculture, International Atomic Energy Agency, Siebersdorf, Austria

Abstract

Between July and September 2017, samples collected from six unvaccinated chickens in Namibia were shown to be positive for infectious bursal disease virus (IBDV) by RT-PCR. Partial sequence and phylogenetic analysis of the VP1 and VP2 genes from six viruses revealed that they all belong to the very virulent pathotype (Genogroup 3) and are genetically very similar to IBDVs identified in neighbouring Zambia. This is the first molecular characterisation of IBDV in Namibia and has implications on the control and management of the disease in the country.

Keywords

poultry; infectious bursal disease virus; Gumboro; Namibia; phylogenetic analysis; VP1; VP2

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