Tuberculosis vaccine may limit COVID-19 deathsA tuberculosis vaccine routinely given to children in countries with high rates of that bacterial disease might be helping to reduce deaths from COVID-19, researchers reported on Thursday in the scientific journal Proceedings of the National Academy of Sciences.
After accounting for differences in factors that might affect vulnerability to the virus - such as income, education, health services and age distribution - the researchers found that countries with higher rates of Bacille Calmette-Guérin (BCG) vaccinations for tuberculosis had lower peak mortality rates from COVID-19.