A child has been diagnosed with polio in Venezuela, where the infectious viral disease has been eradicated since 1989, according to the Pan American Health Organization, a regional apparatus of the World Health Organization. The Western Hemisphere has been certified polio-free since 1994.
원문출처 : https://www.cnn.com/2018/06/11/health/venezuela-polio-who/index.html
원문출처 : https://www.cnn.com/2018/06/11/health/venezuela-polio-who/index.html