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adj.
(especially of medicine) of disease or anything resembling a disease; attacking or affecting many individuals in a community or a population simultaneously; "an epidemic outbreak of influenza"
n.
a serious (sometimes fatal) infection of rodents caused by Yersinia pestis and accidentally transmitted to humans by the bite of a flea that has bitten an infected animal
adj.
encountered generally especially at the present time; "the prevailing opinion was that a trade war could be averted"; "the most prevalent religion in our area"; "speculation concerning the books author was rife"
adj.
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"; "endemic malaria"; "food shortages and starvation are endemic in certain parts of the world"