JERUSALEM : A tuberculosis vaccine administered during the past 15 years is associated with significantly improved COVID-19 outcomes, especially in young adults, according to a new study.The researchers from Ben-Gurion University of the Negev (BGU) and The Hebrew University of Jerusalem, analysed the correlation between the Bacille Calmette-Guerin (BCG) vaccine for tuberculosis and COVID-19 outcomes.The study, published in the journal Vaccines, found that BCG regimes are associated with better COVID-19 outcomes, both in reducing infection rates and death rates per million, especially for people aged 24 or younger who had received the vaccination in the last 15 years.There was no effect among older adults who had received the BCG vaccine,.