sentences:  After sequencing the MERS DNA, EMC claimed ownership of the samples.EMC now requires scientists hoping to work on the MERS problem to sign legal agreements with Erasmus.The U.S. Centers for Disease Control and Prevention (CDC) is still waiting to receive samples of MERS for testing that were collected in October 2012 because the legal teams from the CDC and Erasmus cannot negotiate agreeable terms for a material transfer agreement.