Robert O'Connor, MD (image) University of Virginia Health System Share Print E-Mail Caption Robert O'Connor, MD, is chair of emergency medicine at UVA Health System. Credit UVA Health System Usage Restrictions To be used with coverage of this CDC guideline. Share Print E-Mail 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.