Why CDC measures vaccine effectiveness

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Up-to-Date Info: To find the latest CDC information on this topic go to: https://www.cdc.gov/coronavirus/2019-nCoV/index.html

Why CDC measures vaccine effectiveness

May 17, 2021
By National Center for Immunization and Respiratory Diseases (U.S.). Division of Viral Diseases.

[PDF-101.37 KB]

English

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Details:

Corporate Authors:

National Center for Immunization and Respiratory Diseases (U.S.). Division of Viral Diseases.
Description:

Updated May 17, 2021

After the U.S. Food and Drug Administration (FDA) approves a vaccine or authorizes a vaccine for emergency use, experts continue to assess vaccine effectiveness—or how a vaccine works in real-world conditions. The goal is to understand how a vaccine protects people outside of strict clinical trial settings.

CDC and other partners will continue to assess how COVID-19 vaccines work in real-world conditions. Assessing how vaccines work in the real-world is important to:

• Learn if vaccines offer the same protection seen in clinical trials.

• Adjust vaccine recommendations, as needed.

• Learn why and how often breakthrough cases (people getting sick after vaccination) occur.

• Learn how vaccines protect against COVID-19 variants.

• Inform vaccine policy and widespread vaccine distribution.

• Inform future development of improved vaccine technologies.
Subjects:

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Checklist Coronavirus Infections COVID-19 Vaccines Sensitivity And Specificity Vaccination
Document Type:

Webpage
Place as Subject:

United States
Collection(s):

Stephen B. Thacker CDC Library collection
Main Document Checksum:

[+]

urn:sha256:b61e61d28831bb38e579455ee1e568d7b0b2f0cdfeb6756caa7f78bb682bb42f
Download URL:

https://stacks.cdc.gov/view/cdc/106301/cdc_106301_DS1.pdf
File Type:

why-measure-effectiveness.html

htm

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