Animals vaccinated with mF mRNA/LNP or with mDS-Cav1 mRNA/LNP showed alveolitis levels that were similar to those seen in animals within the unimmunized challenge control group (p = 0.7116 and p = 1.0000 for the raw scores; p = 0.8096 and p = 1.0000 for the pathological scores). This evidence concerns the gene CAV1 and hypersensitivity pneumonitis.