This time around the outbreak originated in China that covered up the issue initially and ended up making the issue a lot worse than it could have been. Additionally, once everyone should've been paying attention on a global scale, Mr President down there in the US just tried to downplay the possible effects of a pandemic and it looks, at the moment, like he again just made everything worse.
Usually we can sit safe and confident at home that the government is overreacting to the situation and everything will be fine, this time around the authorities most globally visible (the US and China where the outbreak started) have obviously bungled their response and we're seeing a lot of panic because people don't have faith in the ability for the globe to respond in a unified manner.