Gladstone scientist Leor Weinberger (IMAGE) Gladstone Institutes Caption Gladstone Investigator Leor Weinberger and his team developed a single-dose intranasal treatment that is effective against variants of the SARS-CoV-2 virus. It’s based on over 20 years of research on therapeutic interfering particles, often called TIPs. Credit Photo: Michael Short/Gladstone Institutes Usage Restrictions Use for non-commercial purposes only 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.