A massive influx of international tourists will arrive in Japan next July for the Tokyo Olympics. Most will be unaware another foreign visitor was specifically imported in preparation for their arrival: Ebola.

明年7月大批国际游客将因东京奥运会而涌入日本。大多数人都不知道，为了迎接他们的到来，另一名外国游客被专门引入日本，它就是埃博拉病毒。

Strains of the infectious virus along with four other dangerous pathogens were brought into the country last month by the Japanese government, so that scientists can study them and research possible countermeasures in the event of an outbreak sparked by the Tokyo 2020 tourist influx.

上个月日本政府将这种传染性病毒以及其他四种危险的病原体带到了日本，以便于科学家研究它们，并探讨因2020年游客涌入东京而引发疫情时可以采取的应对措施。

In addition to Ebola, the Japanese health ministry's National Institute of Infectious Diseases (NIID) has imported the pathogens responsible for four other kinds of viral haemorrhagic fever, including Crimean-Congo haemorrhagic fever, South American haemorrhagic fever, Marburg disease, and Lassa fever.

除了埃博拉病毒，日本卫生部国家传染病研究所还引入了导致其他四种病毒性出血热的病原体，包括克里米亚-刚果出血热、南美出血热、马尔堡病和拉沙热。

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