The Specific VHH Antibody for Plaques (IMAGE) Institut Pasteur Caption The specific VHH antibody for plaques, labeled with a green fluorochrome, is injected into mice. The VHH travels along the blood vessels before marking the plaques in the brain. Photo taken using two-photon microscopy. Credit © Institut Pasteur Usage Restrictions Please mention: © Institut Pasteur 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.