And while flu comes in seasonal waves, COVID-19 has been spreading throughout the year, Poland said, posing challenges for how to time the shots to keep protection strong. He’d also like to see ...

we get updated flu shots each year to protect us against the latest circulating strains. A similar paradigm has unfolded for Covid-19 vaccines since they were first authorized in the height of the ...

A combination shot for flu and COVID-19 using messenger RNA generated antibodies in a study, but U.S. government regulators ...