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.
As an alternative to the TST, the QFT-GIT can be used. to detect latent TB infection in patients who have. been vaccinated with BCG and have a positive TST. 1, 4. The QFT-GIT test is indicated to detect latent infec -. tion with Mycobacterium tuberculosis (TB), not to.