Researchers have created a nasal spray vaccine that protects mice against multiple viruses, bacteria, and even allergens for months. Credit: Shutterstock For decades, scientists have chased the idea of a universal vaccine capable of protecting against virtually any infectious threat. That goal has often seemed almost mythical. Now, researchers at Stanford Medicine and their collaborators report a major step toward that vision. In a new mouse study, they developed an experimental universal

Tag-uri: Coronavirus