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.

Https

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
Comment
. 2022 Feb;22(2):152-153.
doi: 10.1016/S1473-3099(21)00690-3. Epub 2021 Oct 29.

What is the vaccine effect on reducing transmission in the context of the SARS-CoV-2 delta variant?

Annelies Wilder-Smith  1
Affiliations
Comment

What is the vaccine effect on reducing transmission in the context of the SARS-CoV-2 delta variant?

Annelies Wilder-Smith. Lancet Infect Dis. 2022 Feb.
No abstract available

PubMed Disclaimer

Conflict of interest statement

AWS is a member of The Lancet Commission on COVID-19, and a consultant to WHO. The author alone is responsible for the views expressed here and they do not necessarily represent the decisions, policies, or views of The Lancet Commission or WHO. I declare no competing interests.

Comment on

References

    1. Harris RJ, Hall JA, Zaidi A, Andrews NJ, Dunbar JK, Dabrera G. Effect of vaccination on household transmission of SARS-CoV-2 in England. N Engl J Med. 2021;385:759–760. - PMC - PubMed
    1. Liu Y, Rocklöv J. The reproductive number of the Delta variant of SARS-CoV-2 is far higher compared to the ancestral SARS-CoV-2 virus. J Travel Med. 2021;28 - PMC - PubMed
    1. Lopez Bernal J, Andrews N, Gower C, et al. Effectiveness of covid-19 vaccines against the B.1.617.2 (delta) variant. N Engl J Med. 2021;385:585–594. - PMC - PubMed
    1. Singanayagam A, Hakki S, Dunning J, et al. Community transmission and viral load kinetics of the SARS-CoV-2 delta (B.1.617.2) variant in vaccinated and unvaccinated individuals in the UK: a prospective, longitudinal, cohort study. Lancet Infect Dis. 2021 doi: 10.1016/S1473-3099(21)00648-4. published online Oct 28. - DOI - PMC - PubMed
    1. Marks M, Millat-Martinez P, Ouchi D, et al. Transmission of COVID-19 in 282 clusters in Catalonia, Spain: a cohort study. Lancet Infect Dis. 2021;21:629–636. - PMC - PubMed

Supplementary concepts