Given the lack of sure-fire medical defenses, plus the uncertainty surrounding the means of transmission, it is no wonder that emergent and re-emergent diseases generate such fear around the world. Hence the high priority attached to dealing with them.
防不勝防加上原因不明，使得新興再現傳染病成為危害人類生命的恐怖殺手，引發各國高度的重視。