The number of Ebola cases in West Africa has not reached worst-case scenario predictions, but until it drops to zero, the world remains at risk, the CDC director said Monday. Speaking to reporters after a visit to Liberia, Guinea and Sierra Leone, Centers for Disease Prevention Director Dr. Tom Frieden said he saw "real momentum and real progress" in combating the virus. "It's going to be a long hard fight, but I am hopeful that we are going to see continued progress. The challenge is not to let up, not to be complacent and to really double down," he said.
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CDC Director Dr. Tom Frieden has just returned from West Africa
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He described seeing "real progress" in the countries fighting Ebola
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But Frieden warned that until there were no more cases, the world was at risk
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"It's going to be a long, hard fight," Frieden said
@placeholder had the "most hopeful picture" of the three countries, Frieden said.