Since the outbreak, promising vaccines have been developed against Ebola. Piot says thousands of lives could have been saved with earlier investment.
Last month the three worst affected countries celebrated the first week none of them had experienced any new infections. But in recent days there have been several new cases in Liberia.
"We have discovered now, which is something we didn't know, that people – men – can excrete the virus in their seminal fluid for six or seven months. That there may be persistence of the virus in the body. So all that is very new," he said.
Piot says those new developments make the reforms even more urgent, to prevent a future pandemic.
Vocabulary
epidemic:传染病;流行病
pandemic:流行性疾病
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