Search Results - "Thelwall, Simon"
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Effectiveness of Covid-19 Vaccines against the B.1.617.2 (Delta) Variant
Published in The New England journal of medicine (12-08-2021)“…The B.1.617.2 (delta) Covid-19 variant has surged in India and spread worldwide. In a test-negative case–control study, the effectiveness of two doses of…”
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Duration of Protection against Mild and Severe Disease by Covid-19 Vaccines
Published in The New England journal of medicine (27-01-2022)“…A test-negative case–control study involving more than 6 million persons in England who received two doses of the ChAdOx1-S or BNT162b2 vaccine (interval, 3 to…”
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National surveillance of bacterial and fungal coinfection and secondary infection in COVID-19 patients in England: lessons from the first wave
Published in Clinical microbiology and infection (01-11-2021)“…The impact of bacterial/fungal infections on the morbidity and mortality of persons with coronavirus disease 2019 (COVID-19) remains unclear. We have…”
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Epidemiology of COVID-19 in Prisons, England, 2020
Published in Emerging infectious diseases (01-08-2021)“…Using laboratory data and a novel address matching methodology, we identified 734 cases of coronavirus disease in 88 prisons in England during March 16–October…”
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Comparative analysis of the risks of hospitalisation and death associated with SARS-CoV-2 omicron (B.1.1.529) and delta (B.1.617.2) variants in England: a cohort study
Published in The Lancet (British edition) (02-04-2022)“…The omicron variant (B.1.1.529) of SARS-CoV-2 has demonstrated partial vaccine escape and high transmissibility, with early studies indicating lower severity…”
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Covid-19 Vaccine Effectiveness against the Omicron (B.1.1.529) Variant
Published in The New England journal of medicine (21-04-2022)“…In a large case–control study in England, immunity to the omicron variant was very low and less than that to the delta variant 20 weeks after the second…”
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Healthcare-associated COVID-19 in England: A national data linkage study
Published in The Journal of infection (01-11-2021)“…•This is the first national report of healthcare-associated COVID-19 in England.•Our study covered the first wave of the pandemic, from march to august…”
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Risk of severe outcomes among SARS-CoV-2 Omicron BA.4 and BA.5 cases compared to BA.2 cases in England
Published in The Journal of infection (01-07-2023)“…•Immune evasion in Omicron BA.4 and BA.5 may increase risk of severe COVID-19.•BA.4/BA.5 severity was compared against BA.2 among patients attending…”
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Context-specific emergence and growth of the SARS-CoV-2 Delta variant
Published in Nature (London) (06-10-2022)“…The SARS-CoV-2 Delta (Pango lineage B.1.617.2) variant of concern spread globally, causing resurgences of COVID-19 worldwide 1 , 2 . The emergence of the Delta…”
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Misclassification bias in estimating clinical severity of SARS-CoV-2 variants – Authors' reply
Published in The Lancet (British edition) (10-09-2022)“…Citing modelling results that indicated a declining infection detection rate in the USA during the transition period between the dominance of the delta…”
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Risk of severe outcomes among Omicron sub-lineages BA.4.6, BA.2.75, and BQ.1 compared to BA.5 in England
Published in Epidemiology and infection (31-10-2023)“…Since the emergence of Omicron variant of SARS-CoV-2 in late 2021, a number of sub-lineages have arisen and circulated internationally. Little is known about…”
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Comparative transmission of SARS-CoV-2 Omicron (B.1.1.529) and Delta (B.1.617.2) variants and the impact of vaccination: national cohort study, England
Published in Epidemiology and infection (20-03-2023)“…The severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) Omicron variant (B.1.1.529) rapidly replaced Delta (B.1.617.2) to become dominant in England…”
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Hospitalization and Mortality Risk for COVID-19 Cases With SARS-CoV-2 AY.4.2 (VUI-21OCT-01) Compared to Non-AY.4.2 Delta Variant Sublineages
Published in The Journal of infectious diseases (13-09-2022)“…Abstract To investigate if the AY.4.2 sublineage of the SARS-CoV-2 delta variant is associated with hospitalization and mortality risks that differ from…”
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COVID-19 therapeutics: stewardship in England and considerations for antimicrobial resistance
Published in Journal of antimicrobial chemotherapy (23-11-2023)“…Abstract The COVID-19 pandemic saw unprecedented resources and funds driven into research for the development, and subsequent rapid distribution, of vaccines,…”
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Representativeness of whole-genome sequencing approaches in England: the importance for understanding inequalities associated with SARS-CoV-2 infection
Published in Epidemiology and infection (20-09-2023)“…Whole-genome sequencing (WGS) information has played a crucial role in the SARS-CoV-2 (COVID-19) pandemic by providing evidence about variants to inform public…”
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Risk of hospitalisation and death in children with SARS-CoV-2 delta (B.1.612.2) infection
Published in The lancet child & adolescent health (01-05-2022)Get more information
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Descriptive Epidemiology of Travel and Non‐Travel Related SARS‐CoV‐2 Gamma (P.1/501Y.V3) Variant Cases in England, 2021
Published in Influenza and other respiratory viruses (01-05-2024)Get full text
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Surge in SARS-CoV-2 transmission in school-aged children and household contacts, England, August to October 2021
Published in Euro surveillance : bulletin européen sur les maladies transmissibles (02-12-2021)“…Easing of COVID-19 restrictions in England in the summer of 2021 was followed by a sharp rise in cases among school-aged children. Weekly rates of SARS-CoV-2…”
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Improving feedback of surveillance data on antimicrobial consumption, resistance and stewardship in England: putting the data at your Fingertips
Published in Journal of antimicrobial chemotherapy (01-04-2017)“…The provision of better access to and use of surveillance data is a key component of the UK 5 Year Antimicrobial Resistance (AMR) Strategy. Since April 2016,…”
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A standardised protocol for relative SARS-CoV-2 variant severity assessment, applied to Omicron BA.1 and Delta in six European countries, October 2021 to February 2022
Published in Euro surveillance : bulletin européen sur les maladies transmissibles (07-09-2023)“…Several SARS-CoV-2 variants that evolved during the COVID-19 pandemic have appeared to differ in severity, based on analyses of single-country datasets. With…”
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