Come all ye poor men of the north who are working for your lives For to support your families, your children and your wives; There is easier ways of gaining wealth than toiling night and day; Go and dig the gold that lies in California! On every lofty mountain, on every sunny plain, The gold dust lies glittering like dewdrops after rain. Beneath the shade of every tree, among the flowers so gay, It is there we’ll dig the gold that lies in California . . . —Library of Congress Does this song present a realistic description of the life of gold miners?

The constant presence of diseases or infectious agents within a given geographic area or population group. it may also refer to the usual prevalence of a given disease with such area or group. it includes holoendemic and hyperendemic diseases. a holoendemic disease is one for which a high prevalent level of infection begins early in life and affects most of the child population, leading to a state of equilibrium such that the adult population shows evidence of the disease much less commonly than do children (malaria in many communities is a holoendemic disease). a hyperendemic disease is one that is constantly present at a high incidence and/or prevalence rate and affects all groups equally. so probably family history.