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Bill Gates: Pathogen could kill 30m in a year
18 February 2017 Last updated at 16:58 GMT
Microsoft founder Bill Gates has warned a deadly pathogen could easily wipe out 30m people in a year, and that the example of Ebola was one to heed.
Speaking at the Munich Security Conference, Mr Gates said there was a "reasonable probability" of such a virus spreading, and that it would most likely do so in fragile states where it is difficult to stop epidemics.
