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COVID Vaccines Cut Hospital Risk for Immunocompromised Adults
April 4, 2024
From September 2023 to February 2024, adults with weakened immune systems who had received an updated COVID-19 vaccine were about 1/3 less likely to be…
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The Westat Team Behind VISION’s Success
April 1, 2024
The VISION Vaccine Effectiveness Network, launched by the Centers for Disease Control and Prevention (CDC) in 2020, spurred a monumental shift in vaccine assessment, guiding…
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Latest Data on Flu and COVID-19 Vaccine Effectiveness
March 1, 2024
Interim effectiveness estimates of the 2023-24 influenza and COVID-19 vaccines are now available in 2 VISION 2.0 Network papers, which have been published in the…
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Mesnard Honored as an NCRA 50-for-50 Hero
February 14, 2024
Mary Mesnard, a Westat Principal Research Associate, has been designated by the National Cancer Registrars Association (NCRA) as an NCRA 50-for-50 Hero. The 50-for-50 Recognition…
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VISION Vaccine Effectiveness Network: Why It Succeeded
September 11, 2023
With the emergency phase of the COVID-19 pandemic behind us, interest has grown in understanding why the VISION Vaccine Effectiveness (VE) Network, launched in 2020…
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Vaccination Protects Children From Serious COVID-19 Illness
August 22, 2023
New data gathered from July 2022-May 2023 show that children aged 6 months to 5 years who received the original COVID-19 vaccine and the updated…
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Infectious Respiratory Diseases: What Have We Learned From COVID-19?
July 13, 2023
With the emergency phase of the COVID-19 pandemic at an end, questions regarding what we’ve learned from the pandemic about tracking and reducing the spread of respiratory diseases are…
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Half of U.S. Adults Have Hybrid COVID-19 Immunity
June 27, 2023
What is the prevalence of SARS-CoV-2 antibodies among U.S. adults? New data indicate both infection-induced and hybrid immunity increased from spring 2021 to fall 2022.…
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Kathleen Chapman
Principal Research Associate
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Patricia Shifflett
Senior Vice President & Sector Lead, Health