FILE - In this Dec. 25, 2010 file photo, a festival official touches the lip of a young expensive Majahim, dark-skinned originally from Najd, Saudi Arabia, camel during the final day of Mazayin Dhafra ...

Three-quarters of dromedary camels in Saudi Arabia have been infected with the virus that causes Middle East respiratory syndrome, or MERS, according to the most thorough survey of the animals there.

Scientists say the mysterious MERS virus has been infecting camels in Saudi Arabia for at least two decades, and early human cases probably went undiagnosed. Since the Middle East respiratory syndrome ...

LONDON (AP) — Scientists say the mysterious MERS virus has been infecting camels in Saudi Arabia for at least two decades, and early human cases probably went undiagnosed. Since the Middle East ...

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