Effectiveness of mRNA Vaccination in Preventing COVID-19–Associated Invasive Mechanical Ventilation and Death — United States, March 2021–January 2022

Mark W. Tenforde, Wesley H. Self, Manjusha Gaglani, +54

MMWR Morbidity and Mortality Weekly Report

March 2021–JanuaryCovid-19Influenza VaccinesVaccine SurveillanceVaccine Effectiveness +14

Effectiveness of COVID-19 mRNA Vaccines Against COVID-19–Associated Hospitalization — Five Veterans Affairs Medical Centers, United States, February 1–August 6, 2021

Kristina L. Bajema, Rebecca M. Dahl, Mila M. Prill, +20

MMWR Morbidity and Mortality Weekly Report

Mrna VaccinesImmunologyVaccine HesitancyUnited StatesCovid-19 +15

Early Estimates of Bivalent mRNA Vaccine Effectiveness in Preventing COVID-19–Associated Hospitalization Among Immunocompetent Adults Aged ≥65 Years — IVY Network, 18 States, September 8–November 30, 2022

Diya Surie, Jennifer DeCuir, Yuwei Zhu, +46

MMWR Morbidity and Mortality Weekly Report

Vaccine effectiveness of primary series and booster doses against covid-19 associated hospital admissions in the United States: living test negative design study

Katherine Adams, Jillian P. Rhoads, Diya Surie, +37

BMJ

Effectiveness of a Third Dose of Pfizer-BioNTech and Moderna Vaccines in Preventing COVID-19 Hospitalization Among Immunocompetent and Immunocompromised Adults — United States, August–December 2021

Mark W. Tenforde, Manish M. Patel, Manjusha Gaglani, +58

MMWR Morbidity and Mortality Weekly Report

ImmunodeficienciesMrna VaccinesImmunologyCovid-19 HospitalizationVaccine Hesitancy +18

Comparative Effectiveness and Antibody Responses to Moderna and Pfizer-BioNTech COVID-19 Vaccines among Hospitalized Veterans — Five Veterans Affairs Medical Centers, United States, February 1–September 30, 2021

Kristina L. Bajema, Rebecca M. Dahl, Steve L. Evener, +25

MMWR Morbidity and Mortality Weekly Report

Disease Severity of Respiratory Syncytial Virus Compared with COVID-19 and Influenza Among Hospitalized Adults Aged ≥60 Years — IVY Network, 20 U.S. States, February 2022–May 2023

Diya Surie, Katharine A. Yuengling, Jennifer DeCuir, +49

MMWR Morbidity and Mortality Weekly Report

Interim Estimates of 2023–24 Seasonal Influenza Vaccine Effectiveness — United States

Aaron M. Frutos, Ashley M. Price, Elizabeth Harker, +46

MMWR Morbidity and Mortality Weekly Report

SARS-CoV-2 shedding and evolution in patients who were immunocompromised during the omicron period: a multicentre, prospective analysis

Zoe Raglow, Diya Surie, James D. Chappell, +23

The Lancet Microbe

Interim Effectiveness of Updated 2023–2024 (Monovalent XBB.1.5) COVID-19 Vaccines Against COVID-19–Associated Emergency Department and Urgent Care Encounters and Hospitalization Among Immunocompetent Adults Aged ≥18 Years — VISION and IVY Networks, September 2023–January 2024

Jennifer DeCuir, Amanda B. Payne, Wesley H. Self, +61

MMWR Morbidity and Mortality Weekly Report