Leyden Labs Gets €30 Million for Its Virus-Blocking Spray
In this article, you’ll discover:
- How Leyden Labs secured €30 million for a groundbreaking health solution.
- The science behind a nasal spray designed to block viruses immediately.
- Why this new approach offers better protection for everyone, including vulnerable individuals.
- How this technology could change our fight against the flu and future pandemics.
We all know that feeling. A tickle in the throat or a sudden sneeze that makes you wonder, “Is this the start of a cold… or the flu?” For many of us, getting sick is just an annoying part of the year. But for others, like the elderly or those with weaker immune systems, it can be very serious. A Dutch company called Leyden Labs has been working on a new way to stop these viruses, and they just got a huge boost to help them do it. They’ve secured a €30 million investment to speed up the development of a special nasal spray that could change how we fight the flu.
A New Way to Stop Sickness
This isn’t your average saline spray. Leyden Labs is creating something that works very differently from a vaccine. Instead of teaching your whole body to fight a virus, this spray creates a protective shield right where the viruses try to get in: your nose.
The idea is simple but powerful. By delivering special germ-fighting antibodies directly into the nasal passages, the spray provides immediate protection. It’s like having a security guard at the front door, stopping trouble before it can even enter. This approach means it can start working right away, which is a huge plus when you’ve been exposed to a virus.
Protection for Everyone

One of the most exciting things about this nasal spray is who it can help. While vaccines are amazing, they don’t always work as well for people with weakened immune systems. This new spray could offer a solution for them.
“This company addresses a limitation of vaccines, protecting vulnerable groups such as the elderly and immunocompromised via nasal spray, especially during flu season or even pandemics,” said Ineke Cazander, an investment principal at Invest-NL, one of the new funders.
Plus, the flu virus is tricky because it always changes. The team at Leyden Labs designed their spray to target parts of the virus that rarely mutate. This means the spray could remain effective against many different flu types, even new ones that might show up in the future.
Big Backers Believe in the Idea
Getting a €30 million investment is a big deal, and it shows that some major players believe in this technology. The money comes from the European Innovation Council (EIC) Fund and Invest-NL, a Dutch promotional institution. Their support isn’t just about money, it’s a vote of confidence in a new tool to help keep people safe.
“With EIC Fund’s investment in Leyden Labs, we are backing pioneering science and innovative approaches to combat respiratory viruses,” said Svetoslava Georgieva, Chair of the EIC Fund Board. This investment helps strengthen Europe’s ability to handle future health crises.
What’s Next for Leyden Labs?

The company is moving full steam ahead with its main product, a nasal spray called PanFlu. This new funding will help them with clinical development and other important research.
“With PanFlu, we are taking a bold step to stop influenza viruses at the gate,” said Koenraad Wiedhaup, the co-founder and CEO of Leyden Labs.
With investors now from the US, Asia, and Europe, Leyden Labs has a strong global team behind it. Their work could one day free us all from the annual threat of the flu and make the world a much safer place during a viral outbreak.