MEDFORD, N.Y., July 23, 2012 (GLOBE NEWSWIRE) -- Chembio Diagnostics, Inc. (Nasdaq:CEMI), a leader in point-of-care diagnostic tests for infectious diseases, is participating in the XIX International AIDS Conference taking place from July 22-27 in Washington, D.C. at the Walter E. Washington Convention Center. The Company will be showcasing its growing portfolio of rapid, point-of-care HIV diagnostic tests in Hall C, Booth 50.