tetano
Editor, Senior Moderator
Gene
. 2021 Jul 15;145843.
doi: 10.1016/j.gene.2021.145843. Online ahead of print.
No association between the SARS-CoV-2 variants and mortality rates in the Eastern Mediterranean Region
Saad Omais[SUP] 1 [/SUP], Samer Kharroubi[SUP] 2 [/SUP], Hassan Zaraket[SUP] 3 [/SUP]
Affiliations
Abstract
As the novel coronavirus SARS-CoV-2 continues to spread in all countries, there is a growing interest in monitoring and understanding the impact of emerging strains on virus transmission and disease severity. Here, we analyzed SARS-CoV-2 genomic sequences reported in the Eastern Mediterranean Region (EMR) countries, as of 1 January 2021. The majority (∼75%) of these sequences originated from three out of 22 EMR countries, and 65.8% of all sequences belonged to GISAID clades GR, GH, G and GV. A delay ranging between 30-150 days from sample collection to sequence submission was observed across all countries, limiting the utility of such data in informing public health policies. We identified ten common non-synonymous mutations represented among SARS-CoV-2 in the EMR and several country-specific ones. Two substitutions, spike_D614G and NSP12_P323L, were predominantly concurrent in most countries. While the single incidence of NSP12_P323L was positively correlated with higher case fatality rates in EMR, no such association was established for the double (spike_D614G and NSP12_P323L) concurrent variant across the region. Our study identified critical data gaps in EMR highlighting the importance of enhancing surveillance and sequencing capacities in the region.
Keywords: East Mediterranean Region; SARS-CoV-2; case fatality rate; variants; whole genome.
. 2021 Jul 15;145843.
doi: 10.1016/j.gene.2021.145843. Online ahead of print.
No association between the SARS-CoV-2 variants and mortality rates in the Eastern Mediterranean Region
Saad Omais[SUP] 1 [/SUP], Samer Kharroubi[SUP] 2 [/SUP], Hassan Zaraket[SUP] 3 [/SUP]
Affiliations
- PMID: 34274478
- DOI: 10.1016/j.gene.2021.145843
Abstract
As the novel coronavirus SARS-CoV-2 continues to spread in all countries, there is a growing interest in monitoring and understanding the impact of emerging strains on virus transmission and disease severity. Here, we analyzed SARS-CoV-2 genomic sequences reported in the Eastern Mediterranean Region (EMR) countries, as of 1 January 2021. The majority (∼75%) of these sequences originated from three out of 22 EMR countries, and 65.8% of all sequences belonged to GISAID clades GR, GH, G and GV. A delay ranging between 30-150 days from sample collection to sequence submission was observed across all countries, limiting the utility of such data in informing public health policies. We identified ten common non-synonymous mutations represented among SARS-CoV-2 in the EMR and several country-specific ones. Two substitutions, spike_D614G and NSP12_P323L, were predominantly concurrent in most countries. While the single incidence of NSP12_P323L was positively correlated with higher case fatality rates in EMR, no such association was established for the double (spike_D614G and NSP12_P323L) concurrent variant across the region. Our study identified critical data gaps in EMR highlighting the importance of enhancing surveillance and sequencing capacities in the region.
Keywords: East Mediterranean Region; SARS-CoV-2; case fatality rate; variants; whole genome.