Each nanoparticle holds 20 antigens next to each other. The researchers say this provides a stronger signal to the immune system that there is a danger. https:/

Each nanoparticle holds 20 antigens next to each other. The researchers say this provides a stronger signal to the immune system that there is a danger. https://www.niaid.nih.gov/news-events/nanoparticle-flu-vaccine https://www.niaid.nih.gov/news-events/nanoparticle-flu-vacci...