48.3 percent of U.S. ≥16s have had at least one dose of COVID-19 vaccine
Jul 15, 2021
As of May 15, 2021, coverage was lower for non-Hispanic Blacks and Hispanics versus whites; higher for those at risk for severe COVID-19.
Effectiveness of mRNA COVID-19 vaccines lower at ≥120 days
Dec 09, 2021
Among U.S. veterans, vaccine effectiveness was 86%t for Moderna and 75% for Pfizer-BioNTech vaccines at ≥120 days after the second dose.
Vaccine effectiveness up after three COVID-19 vaccine doses
Feb 14, 2022
Vaccine effectiveness was lower during the omicron- versus the delta-predominant period at all time points; it waned with increasing time since vaccination.
Omicron resists Pfizer vaccine but causes less severe disease
Dec 14, 2021
The risk for hospital admission among adults with COVID-19 was 29% lower than in the first pandemic wave, which began in March 2020.
COVID-19 vaccination linked to lower risk for postinfection outcomes
Mar 13, 2024
A reduced risk was seen for venous thromboembolism, arterial thrombosis/thromboembolism and heart failure.
Vaccines’ power against COVID-19 hospitalization fades in elderly
Aug 31, 2021
Hospitalization rates among the fully vaccinated were higher among older residents of nursing homes and among those with underlying conditions.
Evidence updated on myocarditis after mRNA COVID-19 vaccination
Aug 02, 2022
The incidence of myocarditis is probably higher after vaccination with mRNA-1273 (Moderna) versus BNT162b2 (Pfizer) and lower with an increased interval between doses.
mRNA vaccines effectively prevent SARS-CoV-2 in adults in real-world setting
Jul 01, 2021
For those with SARS-CoV-2 infection, vaccinated participants had a lower mean viral load, risk of febrile symptoms and illness duration.
FDA advisers say next round of COVID-19 booster shots should target an XBB Variant
Jun 15, 2023
Protection against the original strain of the virus will be dropped from the updated vaccines as it could contribute to lower vaccine efficacy against newer strains.
Moderna COVID-19 vaccine tied to lower adverse event risk in older adults
Aug 11, 2023
The mRNA-1273 vaccine also was tied to greater protection against COVID-19 in older adults.