Zika virus (IMAGE) La Jolla Institute for Immunology Caption Transmission electron microscope image of Zika virus (red). Credit: National Institute of Allergy and Infectious Diseases, National Institutes of Health Credit National Institute of Allergy and Infectious Diseases, National Institutes of Health Usage Restrictions No restrictions. License Public Domain 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.