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Monjane IVA, Djedje H, Tamele E, Nhabomba V, Tivane AR, Massicame ZE, Arone DM, Pastori A, Bortolami A, Monne I, Woma T, Lamien CE, Dundon WG. H7N6 highly pathogenic avian influenza in Mozambique, 2023. Emerg Microbes Infect 2024; 13:2321993. [PMID: 38422451 PMCID: PMC10906114 DOI: 10.1080/22221751.2024.2321993] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2023] [Accepted: 02/16/2024] [Indexed: 03/02/2024]
Abstract
On 13 October 2023, the National Directorate for Livestock Development in Mozambique was notified of a suspected outbreak of avian influenza in commercial layers. Samples were screened by real-time and conventional RT-PCR and were positive for both H7 and N6. Full genome sequences were obtained for three representative samples. Sequence analysis of the H7 cleavage site confirmed that the viruses were highly pathogenic (i.e. 333- PEPPKGPRFRR/GLF-346). In addition, the H7 and N6 sequences were highly similar (from 99.4-99.5% and 99.6-99.7% for the HA gene and the NA gene, respectively) to the sequences of a H7N6 virus identified in the Republic of South Africa in May 2023 indicating a similar origin of the viruses. The identification of H7N6 HPAIV in Mozambique has important implications for disease management and food security in the region.
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Affiliation(s)
- Iolanda Vieira Anahory Monjane
- Directorate of Animal Science, Central Veterinary Laboratory, Agrarian Research Institute of Mozambique, Maputo, Mozambique
| | - Hernâni Djedje
- Directorate of Animal Science, Central Veterinary Laboratory, Agrarian Research Institute of Mozambique, Maputo, Mozambique
| | - Esmeralda Tamele
- Directorate of Animal Science, Central Veterinary Laboratory, Agrarian Research Institute of Mozambique, Maputo, Mozambique
| | - Virgínia Nhabomba
- Directorate of Animal Science, Central Veterinary Laboratory, Agrarian Research Institute of Mozambique, Maputo, Mozambique
| | | | - Zacarias Elias Massicame
- Ministry of Agriculture and Rural Development, National Directorate of Livestock Development, Maputo, Mozambique
| | - Dercília Mudanisse Arone
- Ministry of Agriculture and Rural Development, National Directorate of Livestock Development, Maputo, Mozambique
| | - Ambra Pastori
- Division of Comparative Biomedical Sciences (BSBIO), Istituto Zooprofilattico Sperimentale delle Venezie (IZSVe), Padova, Italy
| | - Alessio Bortolami
- Division of Comparative Biomedical Sciences (BSBIO), Istituto Zooprofilattico Sperimentale delle Venezie (IZSVe), Padova, Italy
| | - Isabella Monne
- Division of Comparative Biomedical Sciences (BSBIO), Istituto Zooprofilattico Sperimentale delle Venezie (IZSVe), Padova, Italy
| | - Timothy Woma
- Emergency Centre for Transboundary Animal Diseases (ECTAD), Food and Agriculture Organization (FAO), Maputo, Mozambique
| | - Charles E. Lamien
- Animal Production and Health Laboratory, IAEA Laboratories, Seibersdorf, Austria
| | - William G. Dundon
- Animal Production and Health Laboratory, IAEA Laboratories, Seibersdorf, Austria
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