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Modeling the Impact of Vaccination on COVID-19 and Its Delta and Omicron Variants.
Publication Type: Academic Journal
Source(s): Viruses [Viruses] 2022 Jul 06; Vol. 14 (7). Date of Electronic Publication: 2022 Jul 06.
Abstract: Vaccination is an important means to fight against the spread of the SARS-CoV-2 virus and its variants. In this work, we propose a general susceptible-vaccinated-exposed-infected-hospitalized-removed (SVEIHR) model and derive its basic and effective re...
Risk Factors for Slow Viral Decline in COVID-19 Patients during the 2022 Omicron Wave
Publication Type: Academic Journal
Source(s): Viruses, Vol 14, Iss 1714, p 1714 (2022)
Abstract: Formulating termination of isolation (de-isolation) policies requires up-to-date knowledge about viral shedding dynamics. However, current de-isolation policies are largely based on viral load data obtained before the emergence of Omicron variant. In t...
SARS-CoV-2 Omicron Variant, Lineage BA.1, Is Associated with Lower Viral Load in Nasopharyngeal Samples Compared to Delta Variant
Publication Type: Academic Journal
Source(s): Viruses, Vol 14, Iss 919, p 919 (2022)
Abstract: Objectives: High viral load in upper respiratory tract specimens observed for Delta cases might contribute to its increased infectivity compared to the other variant. However, it is not yet documented if the Omicron variant’s enhanced infectivity is al...
How Do Point Mutations Enhancing the Basic Character of the RBDs of SARS-CoV-2 Variants Affect Their Transmissibility and Infectivity Capacities?
Publication Type: Academic Journal
Source(s): Viruses, Vol 14, Iss 783, p 783 (2022)
Abstract: The spread of SARS-CoV-2 variants in the population depends on their ability to anchor the ACE2 receptor in the host cells. Differences in the electrostatic potentials of the spike protein RBD (electropositive/basic) and ACE2 receptor (electronegative/...
Omicron-BA.1 Dispersion Rates in Mexico Varied According to the Regional Epidemic Patterns and the Diversity of Local Delta Subvariants.
Publication Type: Academic Journal
Source(s): Viruses [Viruses] 2023 Jan 15; Vol. 15 (1). Date of Electronic Publication: 2023 Jan 15.
Abstract: Purpose: The Omicron subvariant BA.1 of SARS-CoV-2 was first detected in November 2021 and quickly spread worldwide, displacing the Delta variant. In this work, a characterization of the spread of this variant in Mexico is presented.Methods: The time t...
Omicron-BA.1 Dispersion Rates in Mexico Varied According to the Regional Epidemic Patterns and the Diversity of Local Delta Subvariants
Publication Type: Academic Journal
Source(s): Viruses, Vol 15, Iss 243, p 243 (2023)
Abstract: Purpose: The Omicron subvariant BA.1 of SARS-CoV-2 was first detected in November 2021 and quickly spread worldwide, displacing the Delta variant. In this work, a characterization of the spread of this variant in Mexico is presented. Methods: The time ...
Omicron Variant Generates a Higher and More Sustained Viral Load in Nasopharynx and Saliva Than the Delta Variant of SARS-CoV-2.
Publication Type: Academic Journal
Source(s): Viruses [Viruses] 2022 Oct 31; Vol. 14 (11). Date of Electronic Publication: 2022 Oct 31.
Abstract: The Omicron variant of SARS-CoV-2 spreads more easily than earlier variants, possibly as a result of a higher viral load in the upper respiratory tract and oral cavity. Hence, we investigated whether the Omicron variant generates a higher viral load th...
SARS-CoV-2 Omicron Variant, Lineage BA.1, Is Associated with Lower Viral Load in Nasopharyngeal Samples Compared to Delta Variant.
Publication Type: Academic Journal
Source(s): Viruses [Viruses] 2022 Apr 28; Vol. 14 (5). Date of Electronic Publication: 2022 Apr 28.
Abstract: Objectives: High viral load in upper respiratory tract specimens observed for Delta cases might contribute to its increased infectivity compared to the other variant. However, it is not yet documented if the Omicron variant's enhanced infectivity is al...
How Do Point Mutations Enhancing the Basic Character of the RBDs of SARS-CoV-2 Variants Affect Their Transmissibility and Infectivity Capacities?
Publication Type: Academic Journal
Source(s): Viruses [Viruses] 2022 Apr 10; Vol. 14 (4). Date of Electronic Publication: 2022 Apr 10.
Abstract: The spread of SARS-CoV-2 variants in the population depends on their ability to anchor the ACE2 receptor in the host cells. Differences in the electrostatic potentials of the spike protein RBD (electropositive/basic) and ACE2 receptor (electronegative/...
Sequencing during Times of Change: Evaluating SARS-CoV-2 Clinical Samples during the Transition from the Delta to Omicron Wave.
Publication Type: Academic Journal
Source(s): Viruses [Viruses] 2022 Jun 28; Vol. 14 (7). Date of Electronic Publication: 2022 Jun 28.
Abstract: The pandemic of SARS-CoV-2 is characterized by the emergence of new variants of concern (VOCs) that supplant previous waves of infection. Here, we describe our investigation of the lineages and host-specific mutations identified in a particularly vulne...