A team of researchers has developed an inhalable vaccine that successfully protects against the COVID virus. It also opens the door to delivering other messenger RNA (mRNA) therapeutics for gene replacement therapy and other treatments in the lungs. Results of the study, led by Prof. Mark Saltzman, are published in Science Translational Medicine. For the vaccine, the researchers demonstrated that two intranasal doses of the treatment, made with nanoparticles carrying mRNA COVID vaccine, is effective in mice. It also demonstrates that an inhalable delivery system allows for minimally invasive and lung-targeted mRNA delivery, potentially applicable for numerous pulmonary diseases in...