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.
What are the tests for TB? The tuberculin skin test (TST), also called Mantoux skin test, shows if a person has been infected. QuantiFERON- TB test is a blood based test for diagnosing latent tuberculosis (TB) infection (LTBI). A chest x-ray is given if the Mantoux skin test shows that a person has been infected.