The eight stages identified by erikson need to be mastered for

The eight stages of Erikson's psychosocial development are; Hope: Trust vs. Mistrust, Will: Autonomy vs. Shame and Doubt, Purpose; initiative vs. guilt, Competence: industry vs. inferiority, Fidelity: identity vs. role confusion, Love: intimacy vs. isolation, Care: generativity vs. stagnation and Wisdom: ego identity vs. despair.

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.