Can intranasal vaccinations work?To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 video03/31/2022March 31, 2022Science journalist Derrick Williams investigates one viewer's question about whether it would be possible to vaccinate people against COVID-19 using a nasal spray. Researchers are on it, but intranasal vaccines are challenging. https://p.dw.com/p/49HeiAdvertisement