 T2 Biosystems Incs NASDAQ: TTOO second-quarter revenues rose 162 YY to 6.7 million, slightly ahead of the consensus of 6.12 million, primarily due to increased test panel sales. The firm reported product revenue of 3.7 million, up 253, while contribution revenue doubled to 3.0 million, driven by the U.S. Department of Health and Human Services Biomedical Advanced Research and Development Authority BARDA contract activity. 