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.
A new test that measures T-cell response to antigens from Borrelia burgdorferi has the potential to vastly improve Lyme disease diagnosisâespecially in the early phases. The test, called iSpot Lyme, utilizes the Elispot technology introduced several years ago for evaluation of persistent tuberculosis.