Analyzing Wastewater Over Time (IMAGE) Scripps Research Institute Caption Researchers devised a new way of analyzing wastewater to monitor the prevalence of different SARS-CoV-2 variants over time (shown here for San Diego, from September 2021 to May 2022). Credit SEARCH alliance Usage Restrictions With related coverage and credit 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.