The Battle of Cold Harbor was a major defeat for the Union. The North suffered about 13,000 total casualties to the South's approximately 2,500. Morale was low; the troops were tired. Even Grant seemed depressed.
QuantiFERON-TB Blood Test. QuantiFERON-TB Blood Test. The QuantiFERON-TB Blood Test is used to aid in the diagnosis of both latent and active infections with the bacteria that causes Tuberculosis (TB). This test is one of only 2 blood tests for TB approved by the FDA. Tuberculosis is a bacterial disease that typically affects the lungs.
The QuantiFERON-TB Gold requires only a simple blood test. The patient, therefore, has no need to return to interpret skin test results, there is less chance of interpretation error, and far fewer changes of returning false positives when compared to the PPD. Better yet, results are returned in around 24 hours.