Why a decades-old TB vaccine is getting attention in the fight against Covid-19
In the desperate search for ammunition to fend off the Covid-19 pandemic, a decades-old tuberculosis vaccine, given in huge numbers around the world, is gaining newfound attention.
Researchers in Australia and the Netherlands are testing the idea that the vaccine, known as BCG — short for bacille Calmette-Guérin — could have broad power to boost the immune system against the novel coronavirus. In the United States, a research group in Boston hopes to test the vaccine in front line health workers for the same purpose.
