Monitoring Incidence of COVID-19 Cases, Hospitalizations, and Deaths, by Vaccination Status — 13 U.S. Jurisdictions, April 4–July 17, 2021

Scobie, Heather M.; Johnson, Amelia G.; Suthar, Amitabh B.; Severson, Rachel; Alden, Nisha B.; Balter, Sharon; Bertolino, Daniel; Blythe, David; Brady, Shane; Cadwell, Betsy; Cheng, Iris; Davidson, Sherri; Delgadillo, Janelle; Devinney, Katelynn; Duchin, Jeff; Duwell, Monique; Fisher, Rebecca; Fleischauer, Aaron; Grant, Ashley; Griffin, Jennifer; Haddix, Meredith; Hand, Julie; Hanson, Matt; Hawkins, Eric; Herlihy, Rachel K.; Hicks, Liam; Holtzman, Corinne; Hoskins, Mikhail; Hyun, Judie; Kaur, Ramandeep; Kay, Meagan; Kidrowski, Holly; Kim, Curi; Komatsu, Kenneth; Kugeler, Kiersten; Lewis, Melissa; Lyons, B. Casey; Lyons, Shelby; Lynfield, Ruth; McCaffrey, Keegan; McMullen, Chelsea; Milroy, Lauren; Meyer, Stephanie; Nolen, Leisha; Patel, Monita R.; Pogosjans, Sargis; Reese, Heather E.; Saupe, Amy; Sell, Jessica; Sokol, Theresa; Sosin, Daniel; Stanislawski, Emma; Stevens, Kelly; Vest, Hailey; White, Kelly; Wilson, Erica; MacNeil, Adam; Ritchey, Matthew D.; Silk, Benjamin J.

doi:10.15585/MMWRmm7037e1

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Monitoring Incidence of COVID-19 Cases, Hospitalizations, and Deaths, by Vaccination Status — 13 U.S. Jurisdictions, April 4–July 17, 2021

9 17 2021
By Scobie, Heather M. ; Johnson, Amelia G. ; Suthar, Amitabh B. ; ...
http://dx.doi.org/10.15585/MMWRmm7037e1
Source: MMWR Morb Mortal Wkly Rep. 70(37):1284-1290

[PDF-484.06 KB]

English

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Details:

Alternative Title:

MMWR Morb Mortal Wkly Rep
Personal Author:

Scobie, Heather M. ; Johnson, Amelia G. ; Suthar, Amitabh B. ; Severson, Rachel ; Alden, Nisha B. ; ... More +

Scobie, Heather M. ; Johnson, Amelia G. ; Suthar, Amitabh B. ; Severson, Rachel ; Alden, Nisha B. ; Balter, Sharon ; Bertolino, Daniel ; Blythe, David ; Brady, Shane ; Cadwell, Betsy ; Cheng, Iris ; Davidson, Sherri ; Delgadillo, Janelle ; Devinney, Katelynn ; Duchin, Jeff ; Duwell, Monique ; Fisher, Rebecca ; Fleischauer, Aaron ; Grant, Ashley ; Griffin, Jennifer ; Haddix, Meredith ; Hand, Julie ; Hanson, Matt ; Hawkins, Eric ; Herlihy, Rachel K. ; Hicks, Liam ; Holtzman, Corinne ; Hoskins, Mikhail ; Hyun, Judie ; Kaur, Ramandeep ; Kay, Meagan ; Kidrowski, Holly ; Kim, Curi ; Komatsu, Kenneth ; Kugeler, Kiersten ; Lewis, Melissa ; Lyons, B. Casey ; Lyons, Shelby ; Lynfield, Ruth ; McCaffrey, Keegan ; McMullen, Chelsea ; Milroy, Lauren ; Meyer, Stephanie ; Nolen, Leisha ; Patel, Monita R. ; Pogosjans, Sargis ; Reese, Heather E. ; Saupe, Amy ; Sell, Jessica ; Sokol, Theresa ; Sosin, Daniel ; Stanislawski, Emma ; Stevens, Kelly ; Vest, Hailey ; White, Kelly ; Wilson, Erica ; MacNeil, Adam ; Ritchey, Matthew D. ; Silk, Benjamin J. Less -
Description:

COVID-19 vaccine breakthrough infection Surveillance helps monitor Trends in disease incidence and severe outcomes in fully vaccinated persons, including the impact of the highly transmissible B.1.617.2 (Delta) Variants of SARS-CoV-2, the Virus that causes COVID-19. Reported COVID-19 cases, hospitalizations, and deaths occurring among persons aged ≥18 years during April 4-July 17, 2021, were analyzed by vaccination status across 13 U.S. jurisdictions that routinely linked case Surveillance and immunization registry data. Averaged weekly, age-standardized incidence rate ratios (IRRs) for cases among persons who were not fully vaccinated compared with those among fully vaccinated persons decreased from 11.1 (95% confidence interval [CI] = 7.8-15.8) to 4.6 (95% CI = 2.5-8.5) between two periods when prevalence of the Delta Variants was lower (<50% of sequenced isolates; April 4-June 19) and higher (≥50%; June 20-July 17), and IRRs for hospitalizations and deaths decreased between the same two periods, from 13.3 (95% CI = 11.3-15.6) to 10.4 (95% CI = 8.1-13.3) and from 16.6 (95% CI = 13.5-20.4) to 11.3 (95% CI = 9.1-13.9). Findings were consistent with a potential decline in vaccine protection against confirmed SARS-CoV-2 infection and continued strong protection against COVID-19-associated hospitalization and death. Getting vaccinated protects against severe illness from COVID-19, including the Delta Variants, and monitoring COVID-19 incidence by vaccination status might provide early signals of changes in vaccine-related protection that can be confirmed through well-controlled vaccine effectiveness (VE) studies.
Subjects:

[+]

Adolescent Adult Aged CoronaVirus Infections COVID-19 COVID-19 Vaccines Hospitalization Humans Incidence Middle Aged Vaccination Young Adult
Source:

MMWR Morb Mortal Wkly Rep. 70(37):1284-1290
Pubmed ID:

34529637
Pubmed Central ID:

PMC8445374
Document Type:

Journal Article
Place as Subject:

U.S.
Volume:

70
Issue:

37
Collection(s):

Morbidity and Mortality Weekly Report (MMWR)
Main Document Checksum:

[+]

urn:sha256:04e955a511859b466ff589063c36212331f3853b5c9b138de3f9392a33ca573a
Download URL:

https://stacks.cdc.gov/view/cdc/110253/cdc_110253_DS1.pdf
File Type:

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