Public health response to a multidrug-resistant tuberculosis outbreak among Guatemalans in Tennessee, 2007.

Background: In June 2007, the Tennessee Department of Health notified the Centers for Disease Control and Prevention of four multidrug-resistant tuberculosis (MDR TB) cases in individuals of Guatemalan descent, and requested onsite epidemiologic assistance to investigate this outbreak.

Methods: A case was defined as either culture-confirmed MDR TB with a drug-susceptibility pattern closely resembling that of the index case, or a clinical diagnosis of active TB disease and corroborated contact with a person with culture-confirmed MDR TB. Medical records were reviewed, and patients and their contacts were interviewed.