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| http://dx.doi.org/10.1002/hsr2.480 | DOI Listing |
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Trivalent recombinant protein vaccine induces cross-neutralization against XBB lineage and JN.1 subvariants: preclinical and phase 1 clinical trials.
Nat Commun
December 2024
Laboratory of Aging Research and Cancer Drug Target, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, China.
The immune escape capacities of XBB variants necessitate the authorization of vaccines with these antigens. In this study, we produce three recombinant trimeric proteins from the RBD sequences of Delta, BA.5, and XBB.
View Article and Find Full Text PDFCOVID-19 outbreaks caused by different SARS-CoV-2 variants: a descriptive, comparative study from China.
Front Public Health
December 2024
National Key Laboratory of Intelligent Tracking and Forecasting for Infectious Diseases, NHC Key Laboratory of Medical Virology and Viral Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases (Zhejiang University), National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China.
Objectives: To understand the epidemic characteristics of various SARS-CoV-2 variants, we mainly focus on analyzing general epidemic profiles, viral mutation, and evolution of COVID-19 outbreaks caused by different SARS-CoV-2 variants of concern (VOCs) in China as of August 2022.
Methods: We systematically sorted out the general epidemic profiles of outbreaks caused by various SARS-CoV-2 VOCs in China, compared the differences of outbreaks caused by Delta and Omicron VOCs, and analyzed the mutational changes of subvariants between the same outbreak and different outbreaks.
Findings: By 15 August 2022, a total of 2, 33, and 124 COVID-19 outbreaks caused by Alpha, Delta, and Omicron VOCs, respectively, were reported in different regions of China.
COVID-19 reinfection in pregnancy: assessment of Severity and pregnancy outcomes in England.
J Infect
December 2024
UK Health Security Agency, London, United Kingdom.
Background: Disease severity and pregnancy outcomes following SARS-CoV-2 reinfections in pregnancy are not well understood.
Methods: We linked women aged 18 to 50 years testing positive in the community for COVID-19 between April 2021 and March 2022 to hospital, vaccine and maternal services databases. We compared hospital and intensive care unit (ICU) admission rates following infection and reinfection in pregnant and non-pregnant women, and low birthweight, prematurity and stillbirth in women infected and reinfected during pregnancy.
Characterisation of the SARS-CoV-2 pandemic in healthcare workers within the United Kingdom: risk factors for infection during four successive waves.
J Infect
December 2024
UK Health Security Agency, United Kingdom.
Background: Healthcare workers were at a high risk of infection early in the SARS-CoV-2 pandemic. It is uncertain to what extent occupational, household and community factors contributed, and how this changed over time. We aimed to characterise the risk factors for infection over four successive waves of the pandemic in a large, UK healthcare worker cohort (SIREN).
View Article and Find Full Text PDFTracking SARS-CoV-2 variants in wastewater in San Pedro de la Paz, Chile.
J Water Health
December 2024
Centro de Vigilancia de Aguas Residuales, Centinela Biobío, Facultad de Medicina, Universidad Católica de la Santísima Concepción, Concepción, Chile; Laboratorio de Investigación en Ciencias Biomédicas, Departamento de Ciencias Básicas y Morfología, Facultad de Medicina, Universidad Católica de la Santísima Concepción, Concepción, Chile E-mail:
Studies have shown the presence of SARS-CoV-2 in the stool of both symptomatic and asymptomatic COVID-19 patients, enabling wastewater-based surveillance (WBS) to complement clinical monitoring. The emergence of variants can enhance viral transmissibility, highlighting the need for ongoing surveillance to detect and control infectious diseases. This study aimed to detect SARS-CoV-2 variants in wastewater from a treatment plant in San Pedro de la Paz, Chile, between January and November 2021.
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