The SARS-CoV-2 Omicron Variant of Concern and its Rapid Spread throughout the Western Brazilian Amazon

Sgorlon-Oliveira, Gabriella; Queiroz, Jackson Alves da Silva; Gasparelo, Nadson Willian Felipe; Roca, Tárcio Peixoto; Passos-Silva, Ana Maisa; Teixeira, Karolaine Santos; Oliveira, Adrhyan Araújo da Silva; Souza, Paulo Ricardo Freitas de; Silva, Elizama de Souza; Silva, Ciciléia Correia da; Maia, Adriana Cristina Salvador; Azzi, Camila Flávia Gomes; Batista, Flávia Serrano; Souza, Valquiria Reis de; Oliveira, Franciane Mendes de; Salcêdo, Juan Miguel Villalobos; Pereira, Soraya dos Santos; Naveca, Felipe Gomes; Rampazzo, Rita de Cássia Pontello; Morello, Luis Gustavo; Marchini, Fabrício Klerynton; Vieira, Deusilene Souza

doi:10.20944/preprints202204.0266.v1

Cited by 3 publications

(1 citation statement)

References 31 publications

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“…The SARS-CoV-2 Omicron Variant of Concern and its rapid spread throughout the Western Brazilian Amazon [5] Sarah First detection of the insect-specific viruses Humaiatá-tubiacanga virus in haemagogus mosquitoes collected in the Brazilian Amazon rainforest [10] João Pedro Nunes Santos (Uesc, Ba) Identification of endogenous viral elements in bee genomes [11] Sabrina Ferreira de Santana (Uesc, Ba) Investigating the virome of the Theobroma cacao pollinator Aphis aurantii [12] Environmental Virology Ana Paula Correia Crispim (UFMG, MG)…”

Section: First Author and Institution Titlementioning

confidence: 99%

33rd Brazilian Society for Virology (SBV) 2022 Annual Meeting

Vaslin

Silva

Leal

et al. 2023

Viruses

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Each year, the Brazilian Society for Virology promotes a national meeting during the second semester of the year. In October 2022, the 33rd meeting took place at Arraial da Ajuda, Porto Seguro, Bahia, in-person:.this was the first in-person meeting since 2019, as the 2020 and 2021 events occurred online due to the issues imposed by COVID-19. It was a great pleasure for the whole audience to return to an in-person event, which certainly improved the interactions between the attendees in all ways. As usual, the meeting involved massive participation of undergraduate, graduate, and postdoc students, and several noteworthy international researchers were present. During five afternoons and evenings, attendees could discuss and learn about the most recent data presented by distinguished scientists from Brazil and other countries. In addition, young virology researchers from all levels could present their latest results as oral presentations and posters. The meeting covered all virology areas, with conferences and roundtables about human, veterinary, fundamental, environmental, invertebrate, and plant virology. The costs associated with attending the in-person event caused a slight reduction in the number of attendees compared to the two online events. However, even with this issue, the attendance was impressive. The meeting successfully achieved its most important goals: inspiring young and senior scientists and discussing high-quality, up-to-date virology research.

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Section: First Author and Institution Titlementioning

confidence: 99%

33rd Brazilian Society for Virology (SBV) 2022 Annual Meeting

Vaslin

Silva

Leal

et al. 2023

Viruses

View full text Add to dashboard Cite

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Prevalence of Olfactory Dysfunction with the Omicron Variant of SARS-CoV-2: A Systematic Review and Meta-analysis

Bartheld

Wang

2022

Preprint

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The omicron variant is thought to cause less olfactory dysfunction than previous variants of SARS-CoV-2, but the reported prevalence differs greatly between populations and studies. Our systematic review and meta-analysis provide information about regional differences in prevalence as well as an estimate of the global prevalence of olfactory dysfunction based on 41 studies reporting on nearly 600,000 patients infected with the omicron variant. Our estimate of the omicron-induced prevalence of olfactory dysfunction in populations of European ancestry is 11.6%, while it is significantly lower in all other populations, at 2.9-5.4%. When ethnic differences and population sizes are taken into account, the global prevalence of omicron-induced hyposmia in adults is estimated at 5.2%. Omicron's effect on olfaction is 3-4fold lower than that of the alpha or delta variant, according to previous meta-analyses and our analysis of studies that directly compared prevalence of olfactory dysfunction between omicron and previous variants. The profile of prevalence differences between ethnicities mirrors the results of a recent genome-wide association study that implicated a gene locus encoding an odorant-metabolizing enzyme, UDP glycosyltransferase, to be linked to the extent of COVID-related loss of smell. Our analysis is consistent with the hypothesis that this enzyme contributes to the observed population differences.

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Prevalence of Olfactory Dysfunction with the Omicron Variant of SARS-CoV-2: A Systematic Review and Meta-Analysis

Bartheld

Wang

2023

Cells

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The omicron variant is thought to cause less olfactory dysfunction than previous variants of SARS-CoV-2, but the reported prevalence differs greatly between populations and studies. Our systematic review and meta-analysis provide information regarding regional differences in prevalence as well as an estimate of the global prevalence of olfactory dysfunction based on 62 studies reporting information on 626,035 patients infected with the omicron variant. Our estimate of the omicron-induced prevalence of olfactory dysfunction in populations of European ancestry is 11.7%, while it is significantly lower in all other populations, ranging between 1.9% and 4.9%. When ethnic differences and population sizes are considered, the global prevalence of omicron-induced olfactory dysfunction in adults is estimated to be 3.7%. Omicron’s effect on olfaction is twofold to tenfold lower than that of the alpha or delta variants according to previous meta-analyses and our analysis of studies that directly compared the prevalence of olfactory dysfunction between omicron and previous variants. The profile of the prevalence differences between ethnicities mirrors the results of a recent genome-wide association study that connected a gene locus encoding an odorant-metabolizing enzyme, UDP glycosyltransferase, to the extent of COVID-19-related loss of smell. Our analysis is consistent with the hypothesis that this enzyme contributes to the observed population differences.

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The SARS-CoV-2 Omicron Variant of Concern and its Rapid Spread throughout the Western Brazilian Amazon

Cited by 3 publications

References 31 publications

33rd Brazilian Society for Virology (SBV) 2022 Annual Meeting

33rd Brazilian Society for Virology (SBV) 2022 Annual Meeting

Prevalence of Olfactory Dysfunction with the Omicron Variant of SARS-CoV-2: A Systematic Review and Meta-analysis

Prevalence of Olfactory Dysfunction with the Omicron Variant of SARS-CoV-2: A Systematic Review and Meta-Analysis

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