Vaccination with outer membrane vesicles from Neisseria Meningitidis and SBa15, SBa16 mesoporous silica associated with SARS-CoV-2 induces protective humoral and cellular response against COVID-19 in mice Bruno Gaia Bernardes; Andrew Douglas Moura; João Paulo de Oliveira Guarnieri; Carlos Fernando Macedo da Silva; Hernan Hermes M. da Costa; Ingrid Gracielle Martins da Silva; Karine Brenda Barros Cordeiro; Sônia Nair Báo; Carlos Roberto Prudêncio; Marcelo Lancellotti;