Nigeria, Oct. 2 -- A tuberculosis vaccine, Bacille Calmette-Guerin (BCG), may reduce a person's risk of developing lung cancer if given early in childhood, a six-decade-long study has revealed.

The vaccine is approved for preventing tuberculosis (TB)-a potentially fatal infectious disease that typically attacks the lungs.

According to the study published on MedicalXpress, the vaccine may have some positive side effects.

The study was published on September 25 in the journal JAMA Open.

The Director of Infectious Diseases at Uniformed Services University in Bethesda, Naomi Aronson, said, "BCG-vaccinated participants had a significant 2.5-fold lower rate of lung cancer."

She said lower lung cancer rates persisted in those who received t...