Usage examples (13)

• Using the disease to directly infect a person is called variolation, with the intent of resisting the same disease later.
• Inoculation, hereafter referred to as variolation, was likely practiced in Africa, India, and China long before the 18th century, when it was introduced to Europe.
• As the virus existed possibly as far back as 1000 BCE, and as the first attempts at vaccination called variolation were in the 10th century, to claim that the colonists...
• The practice of variolation was a step in this direction.