“a #nanoparticle #vaccine that includes a fragment of a #SARSCoV2 protein, and delivered it as an aerosol into the #lungs of mice, hamsters and monkeys. This triggered a strong #mucosal immune response — and stymied the spread of SARS-CoV-2 in vaccinated hamsters housed in cages next to one another” https://toot.yosh.is/@yosh/111609209375021433