Toffa, Samuel
UK Health Security Agency
3 papers on CoChat
Most cited papers
- Verified
Effectiveness of COVID-19 vaccines against the Omicron (B.1.1.529) variant of concern
Andrews, N., Stowe, J., Kirsebom, F., Toffa, S., Rickeard, T., Gallagher, E., Gower, C., Kall, M., Groves, N., O’Connell, A.-M., et al. (2021) · New England Journal of Medicine
SARS-CoV-2 and COVID-19 ResearchVaccine Coverage and Hesitancy
Cited by 2,420
- Verified
Effectiveness of COVID-19 booster vaccines against COVID-19-related symptoms, hospitalization and death in England
Andrews, N., Stowe, J., Kirsebom, F., Toffa, S., Sachdeva, R., Gower, C., Ramsay, M., & Lopez Bernal, J. (2022) · Nature Medicine
SARS-CoV-2 and COVID-19 ResearchCOVID-19 epidemiological studies
Cited by 453
- Verified
COVID-19 vaccine effectiveness against the omicron (BA.2) variant in England
Kirsebom, F. C. M., Andrews, N., Stowe, J., Toffa, S., Sachdeva, R., Gallagher, E., Groves, N., O'Connell, A.-M., Chand, M., Ramsay, M., et al. (2022) · The Lancet Infectious Diseases
SARS-CoV-2 and COVID-19 ResearchCOVID-19 epidemiological studies
Cited by 182
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