illustration (IMAGE) UT Southwestern Medical Center Caption Micrograph of a Strongyloides stercoralis parasite larva that expresses fluorescent markers showing the worm's cytoskeleton (red) and sensory neurons in the head and tail (green). Credit Ariel Juno from the laboratory of James Lok, University of Pennsylvania Usage Restrictions none 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.