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Emergence and spread of SARS-CoV-2 lineage B.1.620 with variant of concern-like mutations and deletions

Article scientifique 2021 Anglais

Résumé

Distinct SARS-CoV-2 lineages, discovered through various genomic surveillance initiatives, have emerged during the pandemic following unprecedented reductions in worldwide human mobility. We here describe a SARS-CoV-2 lineage - designated B.1.620 - discovered in Lithuania and carrying many mutations and deletions in the spike protein shared with widespread variants of concern (VOCs), including E484K, S477N and deletions HV69Δ, Y144Δ, and LLA241/243Δ. As well as documenting the suite of mutations this lineage carries, we also describe its potential to be resistant to neutralising antibodies, accompanying travel histories for a subset of European cases, evidence of local B.1.620 transmission in Europe with a focus on Lithuania, and significance of its prevalence in Central Africa owing to recent genome sequencing efforts there. We make a case for its likely Central African origin using advanced phylogeographic inference methodologies incorporating recorded travel histories of infected travellers.

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Dudas, G., Hong, S., Potter, B., Calvignac‐Spencer, S., Niatou-Singa, F., Tombolomako, T., Fuh-Neba, T., Vickos, U., Ulrich, M., Leendertz, F., Khan, K., Huber, C., Watts, A., Olendraitė, I., Snijder, J., Wijnant, K., Bonvin, A., Martres, P., Behillil, S., Ayouba, A., Maïdadi‐Foudi, M., Djomsi, D., Godwe, C., Butel, C., Šimaitis, A., Gabrielaitė, M., Katėnaitė, M., Norvilas, R., Raugaitė, L., Koyaweda, G., Kandou, J., Jonikas, R., Nasvytienė, I., Žemeckienė, Ž., Gečys, D., Tamušauskaitė, K., Norkienė, M., Vasiliūnaitė, E., Žiogienė, D., Timinskas, A., Šukys, M., Šarauskas, M., Alzbutas, G., Amuri-Aziza, A., Kinganda-Lusamaki, E., Makangara-Cigolo, J., Mawete, F., Lofiko, E., Kingebeni, P., Tamfum, J., Bélizaire, M., Essomba, R., Assoumou, M., Mboringong, A., Dieng, A., Juozapaitė, D., Hosch, S., Obama, J., Ayekaba, M., Naumovas, D., Pautienius, A., Rafaï, C., Vitkauskienė, A., Ugenskienė, R., Gedvilaitė, A., Čereškevičius, D., Lesauskaitė, V., Žemaitis, L., Griškevičius, L., Baele, G. (2021). Emergence and spread of SARS-CoV-2 lineage B.1.620 with variant of concern-like mutations and deletions. https://doi.org/10.1038/s41467-021-26055-8

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