San Francisco during COVID-19 quarantine (IMAGE) California Academy of Sciences Caption San Francisco during COVID-19 quarantine Credit Christopher Michel, CC BY 2.0, via Flickr https://www.flickr.com/photos/50979393@N00/49942416608 Usage Restrictions Credit must be given to the creator. Only noncommercial uses of the work are permitted. No derivatives or adaptations of the work are permitted. License CC BY-NC-ND 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.