Which of the following was not a purpose of the propaganda campaign?
to encourage people to buy war bonds
to engender racism against the japanese and germans
to attract women to join the labor force
to encourage americans to work efficiently

It would be "to engender racism against the Japanese and Germans" that was not a purpose of the propaganda campaign, since racism against the Japanese was wide-spread in the US. 

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.