HIV (IMAGE) Howard Hughes Medical Institute Caption This human cell (blue) is under attack by HIV (yellow), the virus that causes AIDS. Even after treatment, the virus continues to lurk in the body in a latent form that's challenging to detect. Credit Seth Pincus, Elizabeth Fischer and Austin Athman, National Institute of Allergy and Infectious Diseases, National Institutes of Health Usage Restrictions See source image and Creative Commons guidelines here: <a target="_blank" href="https://www.flickr.com/photos/nihgov/20683459455/">https://www.flickr.com/photos/nihgov/20683459455/</a> 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.