Volume 24, Number 3—March 2018
Acquired Resistance to Antituberculosis Drugs in England, Wales, and Northern Ireland, 2000–2015
|Acquired drug resistance profile||Description of drug-resistance profile|
|TB patients who did not have MDR TB before or after acquiring resistance||Initially sensitive to isoniazid, rifampin, or both and may have acquired resistance to either isoniazid or rifampin but not both or may have acquired resistance to other anti-TB drug(s).|
|TB patients who acquired resistance that resulted in MDR TB||Initially sensitive to isoniazid, rifampin, or both and acquired resistance to isoniazid, rifampin, or both to have MDR TB.|
|Patients with initial MDR TB and acquired resistance to additional drugs||Initially resistant to at least isoniazid and rifampin and on subsequent culture acquired resistance to other anti-TB drug(s).|
*MDR, multidrug-resistant; TB, tuberculosis.