What was the significance of the Battle of Yorktown to the American Revolutionary War? A It was the battle that forced the Patriots to retreat from New York.

B It was the turning point in the war, when the British realized they could attack during a snowstorm.

C It was the last battle because the Continental Army forced Cornwallis to surrender.

D It was the first battle of war, and it gave the Patriots hope that they could defeat the British.

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.