CONCLUSION
infections
BCG VACCINE, DISEASE, INFECTIONS, TUBERCULOSIS
BCG-Denmark vaccination did not reduce the likelihood of COVID-19 in healthcare workers.In addition to protecting against its target disease, tuberculosis, the bacille Calmette-Guérin (BCG) vaccine has immunomodulatory ‘off-target’ effects that may protect against unrelated infections.Early in the SARS-CoV-2 pandemic, it was proposed that BCG vaccine could be repurposed to protect against COVID-19.In the 