BCG Vaccination (IMAGE) La Jolla Institute for Immunology Caption Close up of reaction of Bacillus Calmette Guerin or BCG vaccination in an infant. Credit La Jolla Institute for Immunology Usage Restrictions Not for public use License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.