An outbreak of Middle East Respiratory Syndrome in South Korea shows how easily diseases can spread in a connected world, but is not serious enough to warrant travel bans or other global measures, the World Health Organization said on Wednesday.

Members of the UN body’s emergency committee agreed unanimously that the outbreak, while worrying, did not qualify as a public health emergency of international concern — a rating that would have triggered a coordinated, worldwide response.

“This outbreak is a wake-up call,” the Geneva-based agency said. “In a highly mobile world, all countries should always be prepared for the unanticipated possibility of outbreaks of this, and other serious infectious diseases.”