非正统“疫苗”为小鼠提供广泛保护

Unorthodox ‘vaccine’ offers broad protection in mice Immune-stimulating cocktail could shield against diverse bacterial and viral infections MITCH LESLIE Vaccines tend to be specific— you can still contract the mumps even if you’ve been immunized against hepatitis B. But for reasons that aren’t well understood, some vaccines seem to provide at least partial protection against multiple infectious diseases. In Science online this week, scientists report that by dosing mice with a mix of immune-provoking molecules, they re-created this effect and protected the animals for several months against a variety of respiratory pathogens, including SARS-CoV-2. The researchers now hope to test a version of their “universal vaccine” in people. into “a state of heightened antiviral vigilance,” as the researchers put it. …