Caption: Messenger RNA (mRNA)– nanoparticle vaccine encoding hemagglutinin antigens (H with number) from all 20 known influenza subtypes. Flu season is now upon us, and protecting yourself and loved ones is still as easy as heading to the nearest pharmacy for your annual flu shot. These vaccines are formulated each year to protect against up to four circulating strains of influenza virus, and they generally do a good job of this. What they can’t do is prevent future outbreaks of more novel flu viruses that occasionally spill over from other species into humans, thereby avoiding a future influe ..read more