Dr. Igor Koralnik headshot (IMAGE) Northwestern University Caption Dr. Igor Koralnik, chief of neuro-infectious disease and global neurology at Northwestern University Feinberg School of Medicine Credit Northwestern Medicine Usage Restrictions Attribute credit License Original 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.