HOGVAX tool (IMAGE) Heinrich-Heine University Duesseldorf Caption With the HOGVAX tool, so-called epitopes – short protein fragments of a pathogen that trigger an immune response – can be combined to create novel vaccines. The aim is to maximise population coverage. (Fig.: HHU/Sara Schulte) Credit HHU/Sara Schulte Usage Restrictions No restrictions. License Public Domain 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.