There are a few synonyms for the term "BCG vaccination," which primarily refers to a vaccine used to protect against tuberculosis. Some alternative phrases you may come across include BCG immunization, Bacillus Calmette-Guerin vaccine, and tuberculosis vaccine. Regardless of the terminology used, the essence of the vaccine remains the same. The BCG vaccination is a crucial preventative measure against tuberculosis, a bacterial infection that primarily affects the lungs and can cause severe respiratory issues. While the vaccine is not entirely fool-proof, receiving it can help reduce the chances of contracting tuberculosis or experiencing severe symptoms if exposed to the bacteria.