VIB VZW;UNIVERSITEIT GENT;TRUSTEES OF DARTMOUTH COLLEGE;THE UNITED STATES OF AMERICA, AS REPRESENTED BY THE SECRETARY, DEPARTMENT OF HEALTH AND HUMAN SERVIC
The present invention relates to immunoglobulin single variable domains (ISVDs) that are directed against respiratory syncytial virus (RSV). More specifically, it relates to ISVDs that bind to the prefusion form of the fusion (F) protein of RSV. The invention relates further to the use of these ISVDs for prevention and/or treatment of RSV infections, and to pharmaceutical compositions comprising these ISVDs.