Nasal delivery of killed Bacillus subtilis spores protects against influenza, RSV and SARS-CoV-2
IntroductionSpores of the bacterium Bacillus subtilis (B.subtilis) have been shown 2006 nissan altima radio to carry a number of properties potentially beneficial for vaccination.Firstly, as vehicles enabling mucosal delivery of heterologous antigens and secondly, as stimulators of innate immunity.Here, we have examined the specificity of protectio