A Vaccine From The 1920s Is Now Being Tested For Use Against The Coronavirus Pandemic

Researchers in a handful of countries are testing a century-old tuberculosis vaccine to see if it can give a boost to the immune system to help it fight off the novel coronavirus now causing the COVID-19 pandemic.

Clinical trials of the Bacille Calmette-Guerin (BCG) vaccine, which was first developed in the early 1920s, are planned in Europe and Australia to see if it can help reduce the prevalence and severity of COVID-19 symptoms.