Assertion: virulent variola virus | /r/AtLocation | the new world
Facets:
value: in the fifteenth century
type: TEMPORAL
Source sentences:
text: Secondary attack rates of 36–88% and 2–47% for unvaccinated and smallpox-vaccinated persons, respectively, led in some parts of the world to sustained endemic presence of disease, as was experienced in Asia Minor, whereas in other parts of the world, smallpox appeared and disappeared, often sweeping through communities as unbridled and catastrophic outbreaks, as happened when fully virulent Variola virus from Europe was introduced to the New World in the fifteenth century.
text: Secondary attack rates of 36–88% and 2–47% for unvaccinated and smallpox-vaccinated persons, respectively, led in some parts of the world to sustained endemic presence of disease, as was experienced in Asia Minor, whereas in other parts of the world, smallpox appeared and disappeared, often sweeping through communities as unbridled and catastrophic outbreaks, as happened when fully virulent Variola virus from Europe was introduced to the New World in the fifteenth century.