| Covid-19 vaccine effectiveness against the Omicron (B. 1.1. 529) variant N Andrews, J Stowe, F Kirsebom, S Toffa, T Rickeard, E Gallagher, ... New England Journal of Medicine 386 (16), 1532-1546, 2022 | 2254 | 2022 |
| 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 T Nyberg, NM Ferguson, SG Nash, HH Webster, S Flaxman, N Andrews, ... The lancet 399 (10332), 1303-1312, 2022 | 1278 | 2022 |
| Hospital admission and emergency care attendance risk for SARS-CoV-2 delta (B. 1.617. 2) compared with alpha (B. 1.1. 7) variants of concern: a cohort study KA Twohig, T Nyberg, A Zaidi, S Thelwall, MA Sinnathamby, S Aliabadi, ... The Lancet Infectious Diseases 22 (1), 35-42, 2022 | 937 | 2022 |
| Effect of vaccination on household transmission of SARS-CoV-2 in England RJ Harris, JA Hall, A Zaidi, NJ Andrews, JK Dunbar, G Dabrera New England Journal of Medicine 385 (8), 759-760, 2021 | 438 | 2021 |
| Effectiveness of COVID-19 vaccines against the Omicron (B. 1.1. 529) variant of concern N Andrews, J Stowe, F Kirsebom, S Toffa, T Rickeard, E Gallagher, ... MedRxiv, 2021.12. 14.21267615, 2021 | 274 | 2021 |
| Household transmission of COVID-19 cases associated with SARS-CoV-2 delta variant (B. 1.617. 2): national case-control study H Allen, A Vusirikala, J Flannagan, KA Twohig, A Zaidi, D Chudasama, ... The Lancet Regional Health–Europe 12, 2022 | 191 | 2022 |
| 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 H Allen, E Tessier, C Turner, C Anderson, P Blomquist, D Simons, ... Epidemiology & Infection 151, e58, 2023 | 90 | 2023 |
| SARS-CoV-2 infections in children following the full re-opening of schools and the impact of national lockdown: prospective, national observational cohort surveillance, July … AA Mensah, M Sinnathamby, A Zaidi, L Coughlan, R Simmons, SA Ismail, ... Journal of Infection 82 (4), 67-74, 2021 | 73 | 2021 |
| Increased household transmission of COVID-19 cases associated with SARS-CoV-2 Variant of Concern B. 1.617. 2: a national case-control study H Allen, A Vusirikala, J Flannagan, KA Twohig, A Zaidi, N Groves, ... Public Health England, 2021 | 63 | 2021 |
| COVID-19 Genomics UK (COG-UK) consortium Hospital admission and emergency care attendance risk for SARS-CoV-2 delta (B. 1.617. 2) compared with alpha (B. 1.1. 7) variants of … KA Twohig, T Nyberg, A Zaidi, S Thelwall, MA Sinnathamby, S Aliabadi, ... Lancet Infect Dis 22 (1), 35-42, 2022 | 40 | 2022 |
| HOSTED—England’s Household Transmission Evaluation Dataset: preliminary findings from a novel passive surveillance system of COVID-19 JA Hall, RJ Harris, A Zaidi, SC Woodhall, G Dabrera, JK Dunbar International journal of epidemiology 50 (3), 743-752, 2021 | 37 | 2021 |
| Assessment of mortality and hospital admissions associated with confirmed infection with SARS-CoV-2 variant of concern VOC-202012/01 (B. 1.1. 7) a matched cohort and time-to … G Dabrera, H Allen, A Zaidi, K Twohig, S Thelwall, E Marchant, ... | 21 | 2021 |
| COVID-19 Genomics UK (COGUK) consortium. 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 … T Nyberg, NM Ferguson, SG Nash, HH Webster, S Flaxman, N Andrews, ... Lancet 399 (10332), 1303-12, 2022 | 18 | 2022 |
| Assessment of mortality and hospital admissions associated with confirmed infection with SARS-CoV-2 Alpha variant: a matched cohort and time-to-event analysis, England, October … G Dabrera, H Allen, A Zaidi, J Flannagan, K Twohig, S Thelwall, ... Eurosurveillance 27 (20), 2100377, 2022 | 13 | 2022 |
| Enhancing epidemiological surveillance of the emergence of the SARS-CoV-2 Omicron variant using spike gene target failure data, England, 15 November to 31 December 2021 PB Blomquist, J Bridgen, N Bray, AM O’Connell, D West, N Groves, ... Eurosurveillance 27 (11), 2200143, 2022 | 12 | 2022 |
| 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 T Nyberg, K Harman, A Zaidi, SR Seaman, N Andrews, SG Nash, ... The Journal of Infectious Diseases 226 (5), 808-811, 2022 | 10 | 2022 |
| Risk of severe outcomes among SARS-CoV-2 Omicron BA. 4 and BA. 5 cases compared to BA. 2 cases in England NA Aziz, SG Nash, A Zaidi, T Nyberg, N Groves, R Hope, JL Bernal, ... Journal of Infection 87 (1), e8-e11, 2023 | 9 | 2023 |
| On the sensitivity and specificity of postmortem upper respiratory tract testing for SARS-CoV-2 JA Hall, RJ Harris, HE Emmett, B Lowe, A Singanayagam, KA Twohig, ... The Journal of Infectious Diseases 224 (3), 389-394, 2021 | 9 | 2021 |
| Impact of SARS-CoV-2 Alpha variant (B. 1.1. 7) on prisons, England A Vusirikala, J Flannagan, M Czachorowski, A Zaidi, KA Twohig, E Plugge, ... Public Health 204, 21-24, 2022 | 8 | 2022 |
| Effects of second dose of SARS-CoV-2 vaccination on household transmission, England A Zaidi, R Harris, J Hall, S Woodhall, N Andrews, K Dunbar, ... Emerging infectious diseases 29 (1), 127, 2023 | 6 | 2023 |
