Just months ago, the world stood in fear of an emerging new disease that threatened to kill millions. A new flu variant H1N1 had arrived. In the UK alone, 65,000 deaths were predicted. Yet to date, these dire warnings have not materialised.If this latest pandemic has taught anything, it is just how little is understood about the invisible world of viruses. But that has not stopped scientists trying.Horizon follows the leading researchers from across the world, who are attempting to unravel the m三米影视为您提供最快病毒为何致命在线观看(高清)，喜欢的话，不要忘记收藏本站网址哦！