SARS-CoV-2 Delta VOC in Scotland: demographics, risk of hospital admission, and vaccine effectiveness.
Open accessThe claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Integrity signals
Registry
Cites
Statistics
Claims the paper makes
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Claims other papers make about this one
Each is checked against this paper’s own text: does it say what the citing paper says it does?
Observational postmarketing studies, including this analysis, have consistently demonstrated a strong association between vaccination and risk reductions in COVID-19 hospitalization in immunocompetent individuals.
“Observational postmarketing studies, including this analysis, have consistently demonstrated a strong association between vaccination and risk reductions in COVID-19 hospitalization in immunocompetent individuals, suggesting that the high efficacy observed in mRNA clinical trials translates into beneficial effects in the community setting.2,3,10”
From Association Between mRNA Vaccination and COVID-19 Hospitalization and Disease Severity (2021) · cites this paper as [10]
In case-control studies from the UK, the BNT162b vaccine was approximately 85% effective for the Delta variant whereas the AZD1222 vaccine was approximately 60% effective.
“In case-control studies from the UK, the BNT162b vaccine was approximately 85% effective for the Delta variant whereas the AZD1222 vaccine was approximately 60% effective 232,233 .”
From The biological and clinical significance of emerging SARS-CoV-2 variants (2021) · cites this paper as [233]
Clinical studies have reported somewhat reduced efficacy and effectiveness against the B.1.1.7, B.1.351, and B.1.617.2 variants.
“Likewise, clinical studies have reported somewhat reduced efficacy and effectiveness against the B.1.1.7, B.1.351, and B.1.617.2 variants (10–12).”
From Durability of mRNA-1273 vaccine–induced antibodies against SARS-CoV-2 variants (2021) · cites this paper as [12]
Current vaccines might be less protective against symptomatic infection with some SARS-CoV-2 variants, and several studies have now shown reduced efficacy of vaccination against infection with SARS-CoV-2 variants.
“Initial reports from clinical trials or from breakthrough community infections suggest that current vaccines might be less protective against symptomatic infection with some SARS-CoV-2 variants.5, 6”
From Neutralising antibody titres as predictors of protection against SARS-CoV-2 variants and the impact of boosting: a meta-analysis (2022) · cites this paper as [6]
Self-check
Percentages, sums and reported differences re-computed from the paper’s own numbers.
The self-check needs the paper’s full text.
Cites
Effectiveness of Covid-19 Vaccines against the B.1.617.2 (Delta) Variant
Lopez Bernal, J., Andrews, N., Gower, C., Gallagher, E., Simmons, R., Thelwall, S., Stowe, J., Tessier, E., Groves, N., Dabrera, G., et al. (2021) · New England Journal of Medicine · doi:10.1056/nejmoa2108891 · Cited by 2,889 · see citing works
Effectiveness of COVID-19 vaccines against the B.1.617.2 variant
Bernal, J. L., Andrews, N., Gower, C., Gallagher, E., Simmons, R., Thelwall, S., Stowe, J., Tessier, E., Groves, N., Dabrera, G., et al. (2021) · doi:10.1101/2021.05.22.21257658 · Cited by 2,888 · see citing works
Lopez Bernal, J., Andrews, N., Gower, C., Robertson, C., Stowe, J., Tessier, E., Simmons, R., Cottrell, S., Roberts, R., O’Doherty, M., et al. (2021) · BMJ · doi:10.1136/bmj.n1088 · Cited by 1,389 · see citing works
Self-citationVasileiou, E., Simpson, C. R., Shi, T., Kerr, S., Agrawal, U., Akbari, A., Bedston, S., Beggs, J., Bradley, D., Chuter, A., et al. (2021) · The Lancet · doi:10.1016/s0140-6736(21)00677-2 · Cited by 549 · see citing works
Self-citationSimpson, C. R., Shi, T., Vasileiou, E., Katikireddi, S. V., Kerr, S., Moore, E., McCowan, C., Agrawal, U., Shah, S. A., Ritchie, L. D., et al. (2021) · Nature Medicine · doi:10.1038/s41591-021-01408-4 · Cited by 251 · see citing works
Self-citationSimpson, C. R., Robertson, C., Vasileiou, E., McMenamin, J., Gunson, R. N., Ritchie, L. D., Woolhouse, M. E. J., Morrice, L., Kelly, D., Stagg, H. R., et al. (2020) · BMJ Open · doi:10.1136/bmjopen-2020-039097 · Cited by 70 · see citing works
Self-citationCohort Profile: Early Pandemic Evaluation and Enhanced Surveillance of COVID-19 (EAVE II) Database
Mulholland, R. H., Vasileiou, E., Simpson, C. R., Robertson, C., Ritchie, L. D., Agrawal, U., Woolhouse, M. E. J., Murray, J., Stagg, H. R., Docherty, A. B., et al. (2021) · International Journal of Epidemiology · doi:10.1093/ije/dyab028 · Cited by 42 · see citing works
Self-citation
Flagged first, then by citations
Cited by
Sorted by citations
Tartof, S. Y., Slezak, J. M., Fischer, H., Hong, V., Ackerson, B. K., Ranasinghe, O. N., Frankland, T. B., Ogun, O. A., Zamparo, J. M., Gray, S., et al. (2021) · The Lancet · doi:10.1016/s0140-6736(21)02183-8 · Cited by 1,167 · see citing works
The biological and clinical significance of emerging SARS-CoV-2 variants
Tao, K., Tzou, P. L., Nouhin, J., Gupta, R. K., de Oliveira, T., Kosakovsky Pond, S. L., Fera, D., & Shafer, R. W. (2021) · Nature Reviews Genetics · doi:10.1038/s41576-021-00408-x · Cited by 1,009 · see citing works
Twohig, K. A., Nyberg, T., Zaidi, A., Thelwall, S., Sinnathamby, M. A., Aliabadi, S., Seaman, S. R., Harris, R. J., Hope, R., Lopez-Bernal, J., et al. (2022) · The Lancet Infectious Diseases · doi:10.1016/s1473-3099(21)00475-8 · Cited by 803 · see citing works
Self-citationDurability of mRNA-1273 vaccine–induced antibodies against SARS-CoV-2 variants
Pegu, A., O’Connell, S. E., Schmidt, S. D., O’Dell, S., Talana, C. A., Lai, L., Albert, J., Anderson, E., Bennett, H., Corbett, K. S., et al. (2021) · Science · doi:10.1126/science.abj4176 · Cited by 527 · see citing works
Cromer, D., Steain, M., Reynaldi, A., Schlub, T. E., Wheatley, A. K., Juno, J. A., Kent, S. J., Triccas, J. A., Khoury, D. S., & Davenport, M. P. (2022) · The Lancet Microbe · doi:10.1016/s2666-5247(21)00267-6 · Cited by 590 · see citing works
Pouwels, K. B., Pritchard, E., Matthews, P. C., Stoesser, N., Eyre, D. W., Vihta, K.-D., House, T., Hay, J., Bell, J. I., Newton, J. N., et al. (2021) · doi:10.1101/2021.08.18.21262237 · Cited by 543 · see citing works
BNT162b2 and mRNA-1273 COVID-19 vaccine effectiveness against the SARS-CoV-2 Delta variant in Qatar
Tang, P., Hasan, M. R., Chemaitelly, H., Yassine, H. M., Benslimane, F. M., Al Khatib, H. A., AlMukdad, S., Coyle, P., Ayoub, H. H., Al Kanaani, Z., et al. (2021) · Nature Medicine · doi:10.1038/s41591-021-01583-4 · Cited by 450 · see citing works
Spike-antibody waning after second dose of BNT162b2 or ChAdOx1
Shrotri, M., Navaratnam, A. M. D., Nguyen, V., Byrne, T., Geismar, C., Fragaszy, E., Beale, S., Fong, W. L. E., Patel, P., Kovar, J., et al. (2021) · The Lancet · doi:10.1016/s0140-6736(21)01642-1 · Cited by 393 · see citing works
Accelerated COVID-19 vaccine development: milestones, lessons, and prospects
Bok, K., Sitar, S., Graham, B. S., & Mascola, J. R. (2021) · Immunity · doi:10.1016/j.immuni.2021.07.017 · Cited by 254 · see citing works
Impact of the delta variant on vaccine efficacy and response strategies
Bian, L., Gao, Q., Gao, F., Wang, Q., He, Q., Wu, X., Mao, Q., Xu, M., & Liang, Z. (2021) · Expert Review of Vaccines · doi:10.1080/14760584.2021.1976153 · Cited by 219 · see citing works
Siegel, D. A., Reses, H. E., Cool, A. J., Shapiro, C. N., Hsu, J., Boehmer, T. K., Cornwell, C. R., Gray, E. B., Henley, S. J., Lochner, K., et al. (2021) · MMWR. Morbidity and Mortality Weekly Report · doi:10.15585/mmwr.mm7036e1 · Cited by 147 · see citing works
Katikireddi, S. V., Cerqueira-Silva, T., Vasileiou, E., Robertson, C., Amele, S., Pan, J., Taylor, B., Boaventura, V., Werneck, G. L., Flores-Ortiz, R., et al. (2022) · The Lancet · doi:10.1016/s0140-6736(21)02754-9 · Cited by 124 · see citing works
Self-citationGriffin, J. B., Haddix, M., Danza, P., Fisher, R., Koo, T. H., Traub, E., Gounder, P., Jarashow, C., & Balter, S. (2021) · MMWR. Morbidity and Mortality Weekly Report · doi:10.15585/mmwr.mm7034e5 · Cited by 125 · see citing works
BNT162b2 and ChAdOx1 nCoV-19 Vaccine Effectiveness against Death from the Delta Variant
Sheikh, A., Robertson, C., & Taylor, B. (2021) · New England Journal of Medicine · doi:10.1056/nejmc2113864 · Cited by 101 · see citing works
Self-citationThiruvengadam, R., Awasthi, A., Medigeshi, G., Bhattacharya, S., Mani, S., Sivasubbu, S., Shrivastava, T., Samal, S., Rathna Murugesan, D., Koundinya Desiraju, B., et al. (2022) · The Lancet Infectious Diseases · doi:10.1016/s1473-3099(21)00680-0 · Cited by 96 · see citing works
A paradigm shift to align transmission routes with mechanisms
Marr, L. C., & Tang, J. W. (2021) · Clinical Infectious Diseases · doi:10.1093/cid/ciab722 · Cited by 53 · see citing works
Chemaitelly, H., Ayoub, H. H., AlMukdad, S., Tang, P., Hasan, M. R., Yassine, H. M., Khatib, H. A. A., Smatti, M. K., Coyle, P., Kanaani, Z. A., et al. (2022) · doi:10.1101/2022.02.07.22270568 · Cited by 30 · see citing works
Ayoub, H. H., Tomy, M., Chemaitelly, H., Altarawneh, H. N., Coyle, P., Tang, P., Hasan, M. R., Kanaani, Z. A., Kuwari, E. A., Butt, A. A., et al. (2022) · doi:10.1101/2022.01.02.22268622 · Cited by 41 · see citing works
Shooting at a Moving Target—Effectiveness and Emerging Challenges for SARS-CoV-2 Vaccine Development
Günl, F., Mecate-Zambrano, A., Rehländer, S., Hinse, S., Ludwig, S., & Brunotte, L. (2021) · Vaccines · doi:10.3390/vaccines9101052 · Cited by 27 · see citing works
- Authors
- Sheikh, A., McMenamin, J., Taylor, B., & Robertson, C.
- Affiliations
- University of Edinburgh (GB)
- Public Health Scotland (GB)
- Corresponding author
- Sheikh, Aziz
- Venue
- The Lancet
- Publisher
- Elsevier BV
- Published
- 2021-06
- Volume
- 397
- Issue
- 10293
- Pages
- 2461-2462
- ISSN
- 0099-5355 (ISSN-L)
- 0140-6736
- PMC
- PMC8201647
- OpenAlex
- W3171654353
- Cited by
- 939
- References
- 7
- Citations by year
- 2026: 10 · 2025: 28 · 2024: 61 · 2023: 141 · 2022: 411 · 2021: 288
- FWCI
- 71.42
- Type
- journal article
- Language
- en
- Open access
- green
- www.ncbi.nlm.nih.gov
- Locations
- The Lancet (publishedVersion)
- PubMed Central (publishedVersion)
- PubMed (publishedVersion)
- Edinburgh Research Explorer (University of Edinburgh) (publishedVersion, other-oa)
- Funders
- Medical Research Council
- Topics
- Health Sciences › Medicine › Infectious Diseases › SARS-CoV-2 and COVID-19 Research
- Physical Sciences › Mathematics › Modeling and Simulation › COVID-19 epidemiological studies
- Health Sciences › Medicine › Infectious Diseases › COVID-19 Clinical Research Studies
- Keywords
- Delta variant, COVID-19 pandemic, hospitalization risk, vaccine effectiveness, demographic factors, Alpha variant, Scotland
- MeSH terms
- COVID-19, SARS-CoV-2, COVID-19 Vaccines, Aged, Child, Child, Preschool, Humans, Patient Admission, Population Surveillance, Scotland, Vaccination
About these checks
Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.
Statistics and arithmetic are recomputed, not judged.
Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.
What counts as a claim ›How we measure confidence ›How we check this ›
Are you an author, or do you see a problem with this page? Request a review
