title: Rebuttal from the authors.
mesh_terms: D000336:Aerosols / Q000737:chemistry*; D000818:Animals; D016503:Drug Delivery Systems; D006801:Humans; D008168:Lung / Q000187:drug effects*; D009330:Nebulizers and Vaporizers; D020545:Respiratory Mucosa / Q000187:drug effects*; D014611:Vaccination / Q000379:methods*; D014612:Vaccines / Q000008:administration & dosage*
chemical_list: D000336:Aerosols; D014612:Vaccines