The flu vaccine is different every year because influenza occurs in many strains.
The vaccine is always formulated to fight the three or four strains of influenza that research predicts as the most common in the US during a particular flu season.
No, because influenza and COVID-19 are two entirely different types of viruses.
When a COVID-19 vaccine is available, that vaccine will protect only against COVID-19, so you’ll need to continue with yearly flu shots as well.
Yes, you could potentially develop COVID-19 and the flu at the same time. The CDC predicts that both viruses will spread in the fall and winter months.
Because of this, getting your flu shot is more essential than ever this year.