Endemic

noun
a disease that is constantly present to a greater or lesser degree in people of a certain class or in people living in a particular location
Similar: endemic disease
adjective
of or relating to a disease (or anything resembling a disease) constantly present to greater or lesser extent in a particular locality
“diseases endemic to the tropics”
Similar: endemical
noun
a plant that is native to a certain limited area
“it is an endemic found only this island”
adjective
native to or confined to a certain region
“the islands have a number of interesting endemic species”