Vaccination (IMAGE) University of California - Riverside Caption New vaccine strategy could mean one-and-done for most viruses, rather than endless annual boosters targeting different viral strains. Credit Aleya Spielman/UCLA Health 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.