Genomic epidemiology of SARS-CoV-2 in Sudan: A retrospective analysis 2020-2022
Mburu, M. W.; Lambisia, A. W.; Elnegoumi, M.; Nour, E. O. M.; Khair, O. M. M.; Abualas, E.; Elhassan, R. M.; Adam, M. A. M.; Mohammed, K. S.; Morobe, J. M.; Ndwiga, L.; Moraa, E. O.; Makori, T. O.; Murunga, N.; Katama, E. N.; Waruguru, D. W.; Githinji, G.; Mwangi, S.; Tessema, S. K.; Adam, M. H. E.; Mahmoud, I.; Mohamed, H. S.; Mustafa, Y. A. A.; Mohamed, M. M. A.; Ahmed, R. H. A.; Mohamed, N. Y. I.; Ali, R. H.; Ebraheem, R. S. M.; Ahmed, H. H. H.; Abdalla, H. E.; Mukhtar, I.; Alla, A. E. M. W.; Elsheikh, O. H. A.; Musa, A. O.; Faki, M. T.; Ahmed, G. M.; Ahmed, T. E. R.; Abdalla, M. A. O.; Moh
Show abstract
SARS-CoV-2 was first detected in Sudan on 13th March 2020. Here, we describe the genomic epidemiology of SARS-CoV-2 in Sudan between May 2020 and April 2022 to understand the introduction and transmission of SARS-CoV-2 variants in the country. A total of 667 SARS-CoV-2 positive samples were successfully sequenced using the nCoV-19 Artic protocol on the Oxford Nanopore Technology ([≥]70% genome completeness). The genomes were compared with a select contemporaneous global dataset to determine genetic relatedness and estimate import/export events. The genomes were classified into 37 Pango lineages within the ancestral strain (107 isolates across 13 Pango lineages), Eta variant of interest (VOI) (78 isolates in 1 lineage), Alpha variant of concern (VOC) (10 isolates in 2 lineages), Beta VOC (26 isolates in 1 lineage), Delta VOC (171 isolates across 8 lineages) and Omicron VOC (242 isolates across 12 lineages). We estimated a total of 144 introductions of the observed variants from different countries across the globe. Multiple introductions of the Eta VOI, Beta VOC and Omicron VOC were observed in Sudan mainly from Europe and Africa. These findings suggest a need for continuous genomic surveillance of SARS-CoV-2 to monitor their introduction and spread consequently inform public health measures to combat SARS-CoV-2 transmission.
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