Simultaneous administration of a COVID-19 mRNA booster shot and the seasonal influenza vaccine slightly increased the risk of systemic reactions during the following week compared with a booster shot ...

A top FDA regulator called for tighter government vaccine oversight, including stricter guidelines for the annual flu shot ...

Pfizer-funded study finds a next-gen mRNA flu shot works better against current strains — but causes more short-term side ...

Those who got flu shots were were less likely to end up in the emergency room. People who got a flu shot earlier this year may be less likely to suffer a severe COVID-19 infection down the road, ...