Another warning issued for MERS virus
Officials have issued another urgent warning about the spread of the deadly virus "MERS".
So far two cases have been confirmed in the United States. Both are health care providers who had been working in Saudi Arabia. U.S. Airlines is now cooperating with the Center of Disease Control to track down people who were on their flight.
Middle East Respiratory Syndrome is similar to the flu and can only be spread through direct contact with someone who has it. There is currently no vaccine.
There have been over 500 cases of MERS and 170 deaths worldwide.