Epi-fluorescence Microscopy Image (IMAGE) Georgia Institute of Technology Caption An epi-fluorescence microscopy image shows human RSV viral RNA in aggregates, called inclusion bodies, and in filament form, growing in green monkey kidney cells, using molecular-scale probes called molecular beacons molecular beacons. Credit Image Courtesy of Phil Santangelo Usage Restrictions For Editorial Use Only 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.