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Middle East Respiratory Syndrome (MERS) is viral respiratory illness first reported in Saudi Arabia in 2012. It is caused by a coronavirus called MERS-CoV. Most people who have been confirmed to have MERS-CoV infection developed severe acute respiratory illness. They had fever, cough, and shortness of breath. About 30% of people confirmed to have MERS-CoV infection have died.
Image of map showing countries in Arabian Penninsula with confirmed MERs and countries where precautions are recommended, as detailed on this page.So far, all the cases have been linked to countries in the Arabian Peninsula. This virus has spread from ill people to others through close contact, such as caring for or living with an infected person. However, there is no evidence of sustained spreading in community settings. We're all going to die...

On May 2, 2014, the first U.S. imported case of MERS was confirmed in a traveler from Saudi Arabia to the U.S. On May 11, 2014, a second U.S. imported case of MERS was confirmed in a traveler who also came from Saudi Arabia. The two U.S. cases are not linked. On May 16, 2014, an Illinois resident who had contact with the first case of MERS in the U.S. tested positive for MERS... -CDCfggts

MERS in the U.S.
First U.S. Case (Indiana)

On May 2, 2014, the first U.S. case of MERS was confirmed in a traveler from Saudi Arabia to Indiana, via London and Chicago. The patient is a healthcare worker who lives and works in Saudi Arabia. He was isolated in a hospital during the course of illness and later discharged, having fully recovered. Public health officials have contacted healthcare workers, family members, and travelers who had close contact with the patient. More about the Indiana case.
Ongoing investigation of the first imported case of MERS in the U.S. identified on May 16, 2014, evidence of apparent past MERS-CoV infection in an Illinois resident who had contact with first U.S. case, reported in Indiana. The Illinois resident met with the Indiana MERS patient on two occasions shortly before the patient was admitted to the hospital and identified as having MERS-CoV infection. The Illinois resident did not seek or require medical care. However, local health officials have monitored his health daily since May 3 as part of the investigation. The health department first tested this person for active MERS-CoV infection on May 5. Those results were negative. Public health officials are also collecting blood samples from people who were identified as close contacts of the Indiana patient. On May 16, the test result was positive for the Illinois resident, showing that he has antibodies to MERS-CoV. More about how we test for MERS-CoV infection. More about the Illinois resident.
Second U.S. Case (Florida)

On May 11, 2014, a second U.S. imported case of MERS was confirmed in a traveler who also came to the U.S. from Saudi Arabia. This patient is also a healthcare worker who traveled from Saudi Arabia to Orlando via London, Boston and Atlanta. The patient is currently isolated in a hospital and doing well. Health officials are working to identify and notify people who may have been exposed to the patient during air travel and in the hospital. More about the Florida case.
The two U.S. cases are not linked. -More CDCfggtry.