FILE - In this Dec. 25, 2010 file photo, a festival official touches the lip of a Majahim camel, originally from Najd, Saudi Arabia, during the final day of Mazayin Dhafra Camel Festival in outskirt of Zayed City about 120 kms south west of Abu Dhabi, United Arab Emirates. A new study published on Wednesday, June 4, 2014, by the New England Journal of Medicine offers the strongest evidence yet that Middle East respiratory syndrome, or MERS, spreads from camels to people. (AP Photo/Kamran Jebreili, File)