Vivvo CMS 4.1 PRI: Public Radio International http://www.pri.org/ ©2010 Spoonlabs d.o.o. PRI: Public Radio International http://www.pri.org/files.php?file=rss_682409203.gif http://www.pri.org/ First case of mad cow disease since 2006 found in a U.S. herd http://www.pri.org/stories/health/first-case-of-mad-cow-disease-since-2006-found-in-a-u-s-herd-9588.html Health and Medicine Tue, 24 Apr 2012 14:57:00 -0500 The USDA on Tuesday was trying to calm fears after a case of mad cow disease was found in a U.S. cow for the first time since 2006. They said no part of the animal had been turned into dairy or meat products, so the nation's food system was safe. PRI: Public Radio International