Vaccines, squirrels with leprosy, and exoplanet atmospheres

In the news pod, the nanotechnology enabling the production of a new vaccine to immunise against future coronaviruses. Then, how we can use psychedelic treatments without giving patients an unwanted trip, and how it was discovered that squirrels and humans were both living with leprosy in medieval England. Plus, what does the latest exoplanet discovery tell us about how far the closest habitable planet might be? Like this podcast? Please help us by supporting the Naked Scientists (www.thenakedscientists.com/do...)