Why humans have themselves to blame for the coronavirus pandemic
No one could have predicted the timing and trajectory of the Covid-19 pandemic, triggered by a novel coronavirus leaping from a bat into a pangolin (apparently) and from there into a person. Even so, scientists knew that a pandemic of some kind would come our way sooner or later. In the past few decades, we’ve seen ever-more-frequent outbreaks of new infectious diseases, as viruses or bacteria hop from their usual animal hosts into people. After this virus, there will be others.