SN: How is Moderna’s mRNA flu vaccine different from conventional flu vaccines? Matz: The conventional flu vaccine is typically generated in chicken eggs, and it’s what we call an inactivated flu vaccine. SN: What are the benefits of getting the mRNA flu vaccine versus the conventional one? Matz: It can be produced much faster than the conventional flu vaccine, and this is very useful if the virus changes during the flu season. SN: Why is the mRNA flu vaccine available only to people ages 50 and older?