The universe of universal flu vaccines

With at least 10 flu vaccines in the clinic that could confer protection against a wide range of strains, dispensing with the yearly seasonal vaccine may be in reach.

Currently, seasonal flu vaccines consist of the three or four strains predicted to be most prevalent. But they are often inadequate due to the difficulty of making accurate predictions and the length of time they take to create and distribute, which means predictions need to be made early when they are less certain, and the development of viral mutations that can render the vaccines less effective. ...