# COVID-19 e azioni aspecifiche dei vaccini: BCG (vaccino antitubercolare), poliomielite, MMR (morbillo-parotite-rosolia). 7 This page does not yet have an agent-readable markdown version. Canonical: https://diagnosticdetectives.com/products/covid-19-and-non-specific-actions-of-vaccines-bcg-poliomyelitis-mmr-7