Emerging and re-emerging viruses: A global challenge illustrated by Chikungunya virus outbreaks

Figure 2 Examples of large arbovirus outbreaks, from the literature. This diagram illustrates several unexpected arbovirus outbreaks that have occurred in regions of the world which are currently the most vulnerable to arboviruses. It is likely that in the coming years other parts of the world will be affected, including regions that are outside of the tropical area.