| http://www.w3.org/ns/prov#value | - Mather himself lost 13 children, and once said in a sermon that, ???A dead child is a sign no more surprising than a broken pitcher or blasted flower.??? Variolation, in which a patient???s arm was lightly scratched and fluid from a fresh smallpox sore rubbed on the wound, was relatively harmless compared to conventional ???treatments.??? It had long been used effectively to prevent smallpox infec
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