From Lab to Life: One Vaccine Fits All

For decades, scientists have been pursuing the goal of a universal vaccine, able to protect us against any type of infectious threat. Fantasy? Science fiction? An impossible dream?

Researchers at Stanford Medicine and collaborators now report a huge step toward that goal. True, in a mouse study – but that is where breakhroughs occur. They have developed an experimental universal vaccine that shields against a huge range of respiratory viruses, and bacteria, and even allergens. It is administered via a nasal spray – and it provides protection in the lungs that endures for several months!

The senior author is Bali Pulendran, a professor of microbiology, and the lead author is Haibo Zhang, a postdoc student in Pulendran’s lab. *

Zhang, H., Floyd, K., Fang, Z., Hoffmann, F. A., Lee, A., Froggatt, H. M., … & Pulendran, B. (2026). Mucosal vaccination in mice provides protection from diverse respiratory threats. Science, eaea1260.

How does the new vaccine work? Differently from others. “Instead of copying part of a virus or bacterium, as was commonly attempted [in order to trigger the immune responses and the body’s defenses], the new vaccine imitates the communication signals immune cells exchange during infection. By doing so, it links the body’s two main defense systems – innate and adaptive immunity – into a coordinated and longer lasting response.” In other words, the body has innate defenses (ready and waiting for invaders), and adaptive defenses (triggered by invading viruses or bacteria) – and the new vaccine marshals both! Pulendran’s team focused on the innate system, because it is highly versatile, and ‘protects against a broad range of different microbes’ – though it is usually short lived. His team figured out how to combine it with adaptive defenses, in order to last longer – perhaps, forever.

One day, thanks to scientists, we will get a flu shot, perhaps at age three, that will give us immunity from flu and other viruses for life.

Hello, vaccine deniers? Any comment? Would you all reject this one, when available? And reject it for your kids? Really?

© The Times of Israel (Blogs)