Baseless Claims Seek to Bolster Vaccine Uptake

There's absolutely no evidence for this, yet, in March 2020, they started pushing the TB vaccine, claiming it might "steel the immune system" against SARS-CoV-2. As reported by Science:1

"Researchers in four countries will soon start a clinical trial of an unorthodox approach to the new coronavirus. They will test whether a century-old vaccine against tuberculosis (TB), a bacterial disease, can rev up the human immune system in a broad way, allowing it to better fight the virus that causes coronavirus disease 2019 and, perhaps, prevent infection with it altogether."