Final answer:
Possible causes of encephalitis include arboviral encephalitis and zoonotic febrile diseases.
Step-by-step explanation:
Encephalitis is a brain infection that causes swelling in the brain. Some possible causes of encephalitis are arboviral encephalitis, which is caused by insect-borne viruses, and zoonotic febrile diseases, caused by pathogenic bacteria that are spread through arthropod vectors. Examples of arboviral encephalitis include eastern equine encephalitis, western equine encephalitis, St. Louis encephalitis, and West Nile encephalitis. Meanwhile, examples of zoonotic febrile diseases are caused by Rickettsia, Anaplasma, Ehrlichia, Bartonella, and Mycoplasma.