A probiotic treatment increases the immune response induced by the nasal delivery of spore-adsorbed TTFC. - Santos, Francisco Denis S.; Mazzoli, Arianna; Maia, Ana Raquel; Saggese, Anella; Isticato, Rachele; Leite, Fabio; Iossa, Susanna; Ricca, Ezio; Baccigalupi, Loredana (Microbial Cell Factories, 2020)