New York: An Indian woman infected with a rare drug-resistant strain of tuberculosis has created a health scare in three US states and for people on her flight and is now being treated in a special isolation facility near Washington, health officials said on Tuesday.

The woman with extensively drug-resistant TB (XDR TB) travelled from India to Chicago and the Center for Disease Control and Prevention (CDC) said that as a precautionary measure it will be contacting people who may have come into contact with her on the plane. The woman has not been identified in keeping with the patient privacy regulations.