This diagram shows how<unk>  gets from the natural host of the virus to humans to make them sick.<unk> , like all other arboviruses, is transmitted from a host reservoir to humans through a viral vector. Some arboviruses can be maintained in a population with minimal input from the reservoir, meaning the vector can use infected humans as a source of the virus to spread to new, susceptible people. However,<unk>  cannot be maintained in the population and therefore cannot be passed via mosquito vector between humans. This means that the host reservoir is the only known source of<unk> , but the host reservoir is unknown at this time.
Sepik virus
Chinese virus
Western equine encephalitis virus
Slow virus
Cricket paralysis virus
Limestone Canyon virus
B virus
California encephalitis orthobunyavirus