Abstract
Avian paramyxovirus-1 (APMV-1), the causative agent of Newcastle disease (ND) in domestic and wild avian species, has recently been reported and characterized in five southern African countries (i.e. Mozambique, Namibia, South Africa, Zambia and Zimbabwe). Since APMV-1s have never been characterized in Botswana, this study was undertaken to determine the genotype circulating in the country. Fourteen samples were collected from ND outbreaks in poultry in 2014, 2018 and 2019 and the complete fusion protein gene was sequenced. Phylogenetic analysis revealed that all of the viruses from Botswana clustered in genotype VII.2 (previously subgenotype VIIh) and that they were more related to viruses from South Africa and Mozambique than the other southern African countries (i.e. Namibia, Zambia and Zimbabwe).
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Acknowledgments
The sequences from this study were generated through the Sequencing Services of the Animal Production and Health sub-programme of the Joint Food and Agricultural Organization of the United Nations/International Atomic Energy Agency (IAEA) Division. This study was supported by funds from the IAEA Peaceful Uses Initiative (PUI) VETLAB Network.
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TK, BM, GC, WGD: conceived and designed the study. TK, JFN, CT: collected and analysed the samples. TK, BM, WGD: analysed the sequence data. WGD: wrote the manuscript. All authors read and approved the final manuscript.
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Kgotlele, T., Modise, B., Nyange, J.F. et al. First molecular characterization of avian paramyxovirus-1 (Newcastle disease virus) in Botswana. Virus Genes 56, 646–650 (2020). https://doi.org/10.1007/s11262-020-01770-4
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DOI: https://doi.org/10.1007/s11262-020-01770-4