Researchers at Stanford Medicine have tested a universal nasal spray vaccine that demonstrated broad protection against various respiratory viruses, bacteria, and allergens in mice. Unlike traditional vaccines that mimic specific pathogens, this formula mimics the signals immune cells use to communicate. While lead scientists believe this could eventually replace multiple annual injections and transform medical practice, experts warn that significant safety testing is required to ensure the hyper-ready immune response doesn’t cause adverse side effects in humans. If human trials are successful and funding is secured, the vaccine could potentially be available to the public within five to seven years.
Date: February 19, 2026. Source: independent.co.uk