"<strong>June 12:</strong> As a precaution against the spread of the MERS virus, workers spray antiseptic solution at an art hall in Seoul, South Korea. A few dozen people were killed <a href=""http://www.cnn.com/2015/06/08/world/gallery/south-korea-mers/index.html"" target=""_blank"">in an outbreak</a> that started in May."
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