How did the popes move to avignon and the establishment of rival popes encourage reformers?

The church's authority weakened because it had moved away from Rome. In addition, this led to the church having a much larger French influence as the center of the institution was now based in France. Rival popes continued to eat away at the influence of the church because it showed that there was infighting taking place.

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.