The MERS coronavirus has sickened more than 500 people in Saudi Arabia . Perhaps most urgent : Has something recently changed to make MERS-coV more dangerous ? Twenty - two new cases were reported last year . Researchers have found the live virus in camels .
The MERS coronavirus has sickened more than 500 people in Saudi Arabia . Twenty - two new cases were reported last year . Researchers have found the live virus in camels .