Study: Updated COVID vaccine is 71 percent effective against hospitalization for older adults
By
Kristen Fischer
Jan 09, 2024
A new study exploring how well the updated COVID-19 vaccines worked in people over the age of 60 had some promising results.
Feds wait for lowered vaccine efficacy to recommend COVID-19 booster shots
By
Alicia Lasek
Jul 22, 2021
COVID-19 vaccine booster shots will not be necessary until mRNA vaccines become less effective, federal health officials say. But immunocompromised Americans are potential near-term recipients, they told...