生物恐怖主义（常速朗读版）

Going viral: bioterrorism

Bill Gates, the erstwhile boss of Microsoft, will address the Munich Security Conference tomorrow, warning security chiefs that the threat of bioterrorism is on the increase—and that outbreaks of disease are a threat to international security. New technologies for genetic engineering could allow terrorists to create synthetic viruses more easily, propagating smallpox, a deadly influenza strain or perhaps something entirely new. The recent Ebola outbreak demonstrated just how easily epidemics create social and economic turmoil. Mr. Gates will argue that the solutions are to invest more in new vaccines and drugs, as well as in faster means of vaccine development.