Camels in Saudi Arabia teeming with MERS virus

Most animals tested had signs of infection that can be deadly in people

LAST STRAW  Three-quarters of dromedary camels in Saudi Arabia show signs of MERS coronavirus infections, further evidence that the humped animals are a possible source of the deadly virus. 

 Ivan Pavlov/Shutterstock

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.