SEOUL, SOUTH KOREA - JUNE 04: A young girl wears mask as a precaution against the MERS virus at the Gyeongbok palace on June 4, 2015 in Seoul, South Korea. Two deaths from Middle East Respiratory Syndrome (MERS) have been confirmed on June 2, 2015, and the number of confirmed local patients have risen to 35 as of June 4, 2015. More than 700 schools from kindergartens to colleges have been closed. (Photo by Chung Sung-Jun/Getty Images)
Chung Sung-Jun—Getty Images
By Salima Koroma
June 18, 2015
TIME Health
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The Middle East Respiratory Syndrome—MERS—has infected at least 165 people and has killed at least 23 in South Korea, but there still isn’t a vaccine to prevent or treat it.

And there might not be for a very long time.

MERS is a virus similar to SARS, and easily confused with the flu or common cold. It’s also highly contagious.The disease was first identified in Saudi Arabia in 2012, and since then, has shown up in 25 different countries.

But a vaccine could be a long way off. Watch the Brief to find out the three key reasons why.


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