Table 1. Infectious etiologies of bilateral facial palsy.

CMV, cytomegalovirus; EBV, Epstein-Barr virus; GBS, Guillain-Barré syndrome; HIV, human immunodeficiency virus; HTLV-1, human T-lymphotropic virus; HZV, herpes zoster virus.

Viral	Bacterial	Spirochete, protozoa, fungi
Arbovirus	Diphtheria	Borreliosis (Lyme disease)
Brainstem encephalitis	Intracranial abscess (mycoplasma pneumoniae)	Leptospirosis
Coxsakie virus	Leprosy	Malaria
CMV	Meningitis	Syphilis
EBV	Otitis media (bilateral)	Cryptococcal meningitis
GBS (Miller Fisher syndrome)	Scarlet fever
HIV	Tetanus
HTLV-1	Tuberculosis
HZV (Ramsay Hunt syndrome)
Influenza
Mumps
Poliomyelitis