Fu2 nanobody bound to the viral spike (IMAGE) Karolinska Institutet Caption Fu2 nanobody bound to the viral spike Credit Hrishikesh Das and Martin Hällberg Usage Restrictions Should only be used when reporting about this study. 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.