Please follow http://www.cdc.gov/tb/publications/guidestoolkits/false_positive/False-Positive.htm?s_cid=tw_DUMERMINONLINE01072020017.

Please follow http://www.cdc.gov/tb/publications/guidestoolkits/false_positive/False-Positive.htm?s_cid=tw_DUMERMINONLINE01072020017.