The virus can spread even in clear air.But exposed in sunlight for 2 sec will kill it too.I guess its good they help Africa and shit.I think it's better that people don't engage in uncivilised places for the reason that these guys eat bats and other animals which have the weirdest viruses and when the 'let-me-fix-your-health' guys go there,they transmit and spread the virus coz they have no idea it was so easy to,and they fuck up whole Africa all over again and put whole world into an alert.If you are going to let them live how they like,better don't go there see how they are doing either..