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.
T-SPOT.TB is a type of ELISPOT assay used for tuberculosis diagnosis, which belongs to the group of interferon-gamma release assays.The test is manufactured by Oxford Immunotec in the UK.It is available in most European countries, the United States as well as various other countries. metaanalysis of studies in children with active tuberculosis published in 2011 suggests that the sensitivity of the T-SPOT. TB is very similar to that of the tuberculin skin test (pooled sensitivity reported as 84% and 80%, respectively).