One of two types of test kits produced by the US Centers for Disease Control and Prevention in January were likely contaminated, its parent agency confirmed.
원문출처 : https://www.cnn.com/2020/06/20/politics/cdc-test-kits-contamination/index.html
원문출처 : https://www.cnn.com/2020/06/20/politics/cdc-test-kits-contamination/index.html