Why it’s better to give simultaneous COVID-19 and flu vaccines in different arms: Aussie study
Doherty Institute researchers found vaccinating in the same arm could negatively affect COVID-19 immunity.

When patients front up for their COVID-19 booster and influenza vaccine on the same day, should GPs recommend they put forward one arm or two?
The answer is two, according to findings from a small study by the Doherty Institute.