@article{355862f51848409f8136aff24ddb68e5,
title = "Interim estimates of vaccine effectiveness of BNT162b2 and mRNA-1273 COVID-19 vaccines in preventing SARS-CoV-2 infection among health care personnel, first responders, and other essential and frontline workers Eight U.S. Locations, December 2020 March 2021",
abstract = "What is already known about this topic? Messenger RNA (mRNA) COVID-19 vaccines have been shown to be effective in preventing symptomatic SARS-CoV-2 infection in randomized placebo-controlled Phase III trials. What is added by this report? Prospective cohorts of 3,950 health care personnel, first responders, and other essential and frontline workers completed weekly SARS-CoV-2 testing for 13 consecutive weeks. Under real-world conditions, mRNA vaccine effectiveness of full immunization (≥14 days after second dose) was 90\% against SARS-CoV-2 infections regardless of symptom status; vaccine effectiveness of partial immunization (≥14 days after first dose but before second dose) was 80\%. What are the implications for public health practice? Authorized mRNA COVID-19 vaccines are effective for preventing SARS-CoV-2 infection in real-world conditions. COVID-19 vaccination is recommended for all eligible persons.",
author = "Thompson, \{Mark G.\} and Burgess, \{Jefferey L.\} and Naleway, \{Allison L.\} and Tyner, \{Harmony L.\} and Yoon, \{Sarang K.\} and Jennifer Meece and Olsho, \{Lauren E.W.\} and Caban-Martinez, \{Alberto J.\} and Ashley Fowlkes and Karen Lutrick and Kuntz, \{Jennifer L.\} and Kayan Dunnigan and Odean, \{Marilyn J.\} and Hegmann, \{Kurt T.\} and Elisha Stefanski and Edwards, \{Laura J.\} and Natasha Schaefer-Solle and Lauren Grant and Katherine Ellingson and Groom, \{Holly C.\} and Tnelda Zunie and Thiese, \{Matthew S.\} and Lynn Ivacic and Wesley, \{Meredith G.\} and Lamberte, \{Julie Mayo\} and Xiaoxiao Sun and Smith, \{Michael E.\} and Phillips, \{Andrew L.\} and Groover, \{Kimberly D.\} and Yoo, \{Young M.\} and Joe Gerald and Brown, \{Rachel T.\} and Herring, \{Meghan K.\} and Gregory Joseph and Shawn Beitel and Morrill, \{Tyler C.\} and Josephine Mak and Patrick Rivers and Harris, \{Katherine M.\} and Hunt, \{Danielle R.\} and Arvay, \{Melissa L.\} and Preeta Kutty and Fry, \{Alicia M.\} and Manjusha Gaglani",
note = "Publisher Copyright: {\textcopyright} 2021 Department of Health and Human Services. All rights reserved.",
year = "2021",
doi = "10.15585/MMWR.MM7013E3",
language = "English (US)",
volume = "70",
pages = "495--500",
journal = "Morbidity and Mortality Weekly Report",
issn = "0149-2195",
publisher = "Department of Health and Human Services",
number = "13",
}