Although cholera is rare throughout the developed world, it is [[endemic]] in [[Sub-Saharan Africa]] and other underdeveloped areas, and a common cause of [[mortality]] and [[morbidity]]. <ref name="cdc" /> Untreated cholera has a mortality rate of about 50 percent. | Although cholera is rare throughout the developed world, it is [[endemic]] in [[Sub-Saharan Africa]] and other underdeveloped areas, and a common cause of [[mortality]] and [[morbidity]]. <ref name="cdc" /> Untreated cholera has a mortality rate of about 50 percent. |