Please use this identifier to cite or link to this item: https://covid-19.conacyt.mx/jspui/handle/1000/1616
Genetic diversity and phylodynamics of avian coronaviruses in Egyptian wild birds
Rohaim, M
El Naggar, R
Helal, A
Bayoumi, M
El-Saied, M
Ahmed, K
Shabbir, M
Munir, M
Acceso Abierto
Atribución-NoComercial-SinDerivadas
Avian coronaviruses (ACoVs) are continuously evolving and causing serious economic consequences in the poultry industry and around the globe. Owing to their extensive genetic diversity and high mutation rates, controlling ACoVs has become a challenge. In this context, the potential contribution of wild birds in the disease dynamics, especially in domesticated birds, remains largely unknown. In the present study, five hundred fifty-seven (n = 557) cloacal/fecal swabs were collected from four different wild bird species from eight Egyptian governorates during 2016 and a total of fourteen positive isolates were used for phylodynamics and evolutionary analysis. Genetic relatedness based on spike (S1) gene demonstrated the clustering of majority of these isolates where nine isolates grouped within Egy/variant 2 (IS/885 genotype) and five isolates clustered within Egy/variant 1 (IS/1494/06 genotype). Interestingly, these isolates showed noticeable genetic diversity and were clustered distal to the previously characterized Egy/variant 1 and Egy/variant 2 in Egyptian commercial poultry. The S1 gene based comparison of nucleotide identity percentages revealed that all fourteen isolates reported in this study were genetically related to the variant GI-23 lineage with 92⁻100% identity. Taken together, our results demonstrate that ACoVs are circulating in Egyptian wild birds and highlight their possible contributions in the disease dynamics. The study also proposes that regular monitoring of the ACoVs in wild birds is required to effectively assess the role of wild birds in disease spread, and the emergence of ACoVs strains in the country.
Viruses
2019
Preimpreso
https://coronavirus.1science.com/item/2b285e9a503754fdb4392859f02f7b24ae500610
Inglés
VIRUS RESPIRATORIOS
Appears in Collections:Artículos científicos

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