A medical employee places a sample in a container tube while working in an aseptic cabinet, during a drill of protocol in the Biological Containment Center of the National Institute of Biological Microbiology Dr. Carlos G. Malbran, in Buenos Aires, Argentina, on Oct. 29, 2014. Argentina developed the method of diagnosis of molecular biology necessary to confirm a case of ebola quickly if it were to occur in the country. (Xinhua/Martin Zabala)