graphic abstract (IMAGE) University of California - San Diego Caption This graphical abstract shows the experimental approach used by the researchers to study immune responses to SA vaccination. Vaccines targeting subdominant antigens, such as toxins produced by the bacteria, conferred more protection than vaccines targeting dominant antigens. Credit UC San Diego Health Sciences Usage Restrictions Use photo credit License Original 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.