Chamber (IMAGE) University at Buffalo Caption A vacuum chamber holds ingredients of a liposome-based vaccine that could be developed for COVID-19. The chamber is used for freeze-drying products. Credit Douglas Levere / University at Buffalo Usage Restrictions This image may only be used in news stories describing the research outlined in the associated press release. 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.