T2 Biosystems, Inc., an in vitro diagnostics company, develops and sells diagnostic products and product candidates in the United States and internationally. Its technology enables detection of pathogens, biomarkers, and other abnormalities in various unpurified patient sample types, including whole blood, plasma, serum, saliva, sputum, cerebral spinal fluid, and urine. The company also offers T2Dx Instrument, a bench-top instrument that runs various diagnostic tests from patient samples; T2Candida panel, a direct-from-blood molecular diagnostic test panel that detects lethal form of common blood stream infections, which cause sepsis and candidemia; T2Bacteria panel, a direct-from-blood molecular diagnostic test panel, which detects bacterial pathogens in blood stream infections; T2Resistance panel, a direct-from-blood test that identifies carbapenem resistance genes; and T2Biothreat, a direct-from-blood molecular diagnostic test panel that runs on the T2Dx Instrument and detects biothreat pathogens. In addition, it is developing T2Cauris panel, a direct-from-blood molecular diagnostic test that runs on the T2Dx Instrument and detects Candida auris; and T2Lyme panel, a direct-from-blood molecular diagnostic test panel that runs on the T2Dx Instrument to identify the bacteria that cause Lyme disease. T2 Biosystems, Inc. was incorporated in 2006 and is headquartered in Lexington, Massachusetts.