BCG vaccine is safe and does not lead to an increased risk of COVID-19 symptoms

The BCG vaccine, an vaccine originally made against tuberculosis, has a general stimulating effect on the immune system and is therefore effective against multiple infectious diseases – possibly also against COVID-19. This study compared groups of volunteers who have received a BCG vaccine (or not) in the past five years (before the corona pandemic), showing that the vaccine is safe and possibly influences COVID-19 symptoms.