PHILADELPHIA — For years, scientists have tried, and failed, to make a one-and-done vaccine that would provide at least partial protection against all types of the flu.
A University of Pennsylvania scientist now thinks he has cracked the case, using the same technology that was the basis for the Pfizer and Moderna COVID vaccines: messenger RNA.
In November, Scott Hensley and his colleagues announced promising results from testing this universal flu vaccine in lab animals, and now they are making plans to test it in humans.
