Alere ($ALR) says its fourth quarter 2012 net revenue surged to nearly $756 million, up substantially from $651 million over the same period in 2011. A big part of that jump came from acquisitions in the diagnostics space, Alere said, which added nearly $78 million to the company's fourth-quarter revenue versus a year ago. The maker of diagnostics and health information products lost $62.7 million during the quarter, but that's down from a nearly $364 million net loss over its 2011 fourth quarter. Release