One Step Closer to a Universal Flu Vaccine?

(NYT) Scientists have tested in animals a vaccine that may protect against 20 strains of influenza, helping to prevent another pandemic. A new study describes successful animal tests of just such a vaccine, offering hope that the country can be protected against future flu pandemics. Like the Covid vaccines made by Pfizer-BioNTech and Moderna, the experimental flu vaccine relies on mRNA.