Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.


The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation

Search Page


My NCBI Filters

Results by year

Table representation of search results timeline featuring number of search results per year.

Year Number of Results
1999 1
2011 1
2013 2
2014 1
2015 2
2017 2
2018 3
2019 2
2020 7
2021 15
2022 22
2023 14
2024 5

Text availability

Article attribute

Article type

Publication date

Search Results

69 results

Results by year

Filters applied: . Clear all
Page 1
Covid-19 Vaccine Effectiveness against the Omicron (B.1.1.529) Variant.
Andrews N, Stowe J, Kirsebom F, Toffa S, Rickeard T, Gallagher E, Gower C, Kall M, Groves N, O'Connell AM, Simons D, Blomquist PB, Zaidi A, Nash S, Iwani Binti Abdul Aziz N, Thelwall S, Dabrera G, Myers R, Amirthalingam G, Gharbia S, Barrett JC, Elson R, Ladhani SN, Ferguson N, Zambon M, Campbell CNJ, Brown K, Hopkins S, Chand M, Ramsay M, Lopez Bernal J. Andrews N, et al. Among authors: lopez bernal j. N Engl J Med. 2022 Apr 21;386(16):1532-1546. doi: 10.1056/NEJMoa2119451. Epub 2022 Mar 2. N Engl J Med. 2022. PMID: 35249272 Free PMC article.
Effectiveness of the Pfizer-BioNTech and Oxford-AstraZeneca vaccines on covid-19 related symptoms, hospital admissions, and mortality in older adults in England: test negative case-control study.
Lopez Bernal J, Andrews N, Gower C, Robertson C, Stowe J, Tessier E, Simmons R, Cottrell S, Roberts R, O'Doherty M, Brown K, Cameron C, Stockton D, McMenamin J, Ramsay M. Lopez Bernal J, et al. BMJ. 2021 May 13;373:n1088. doi: 10.1136/bmj.n1088. BMJ. 2021. PMID: 33985964 Free PMC article.
Effectiveness of BNT162b2 against COVID-19 in adolescents.
Powell AA, Kirsebom F, Stowe J, McOwat K, Saliba V, Ramsay ME, Lopez-Bernal J, Andrews N, Ladhani SN. Powell AA, et al. Among authors: lopez bernal j. Lancet Infect Dis. 2022 May;22(5):581-583. doi: 10.1016/S1473-3099(22)00177-3. Epub 2022 Mar 21. Lancet Infect Dis. 2022. PMID: 35325619 Free PMC article. No abstract available.
Representativeness, Vaccination Uptake, and COVID-19 Clinical Outcomes 2020-2021 in the UK Oxford-Royal College of General Practitioners Research and Surveillance Network: Cohort Profile Summary.
Leston M, Elson WH, Watson C, Lakhani A, Aspden C, Bankhead CR, Borrow R, Button E, Byford R, Elliot AJ, Fan X, Hoang U, Linley E, Macartney J, Nicholson BD, Okusi C, Ramsay M, Smith G, Smith S, Thomas M, Todkill D, Tsang RS, Victor W, Williams AJ, Williams J, Zambon M, Howsam G, Amirthalingam G, Lopez-Bernal J, Hobbs FDR, de Lusignan S. Leston M, et al. Among authors: lopez bernal j. JMIR Public Health Surveill. 2022 Dec 19;8(12):e39141. doi: 10.2196/39141. JMIR Public Health Surveill. 2022. PMID: 36534462 Free PMC article.
COVID-19 vaccine effectiveness against hospitalisation and death of people in clinical risk groups during the Delta variant period: English primary care network cohort study.
Whitaker HJ, Tsang RSM, Byford R, Aspden C, Button E, Sebastian Pillai P, Jamie G, Kar D, Williams J, Sinnathamby M, Marsden G, Elson WH, Leston M, Anand S, Okusi C, Fan X, Linley E, Rowe C, DArcangelo S, Otter AD, Ellis J, Hobbs FDR, Tzortziou-Brown V, Zambon M, Ramsay M, Brown KE, Amirthalingam G, Andrews NJ, de Lusignan S, Lopez Bernal J. Whitaker HJ, et al. Among authors: lopez bernal j. J Infect. 2023 Oct;87(4):315-327. doi: 10.1016/j.jinf.2023.08.005. Epub 2023 Aug 12. J Infect. 2023. PMID: 37579793 Free article.
Early evaluation of the safety, reactogenicity, and immune response after a single dose of modified vaccinia Ankara-Bavaria Nordic vaccine against mpox in children: a national outbreak response.
Ladhani SN, Dowell AC, Jones S, Hicks B, Rowe C, Begum J, Wailblinger D, Wright J, Owens S, Pickering A, Shilltoe B, McMaster P, Whittaker E, Zuo J, Powell A, Amirthalingam G, Mandal S, Lopez-Bernal J, Ramsay ME, Kissane N, Bell M, Watson H, Ho D, Hallis B, Otter A, Moss P, Cohen J. Ladhani SN, et al. Among authors: lopez bernal j. Lancet Infect Dis. 2023 Sep;23(9):1042-1050. doi: 10.1016/S1473-3099(23)00270-0. Epub 2023 Jun 16. Lancet Infect Dis. 2023. PMID: 37336224 Free article.
69 results