variolation's Usage Examples:

God, maybe it got infected or something!Sometimes they became infected with other illnesses, and variolation seemed to start entirely new epidemics.

When Jenner did variolations on milkmaids who had had cowpox, they never came down with smallpox.

After variolation, sometimes people died from the smallpox they caught.

But in other cases, variolation worked: The person who survived it did not subsequently get smallpox.

Sometimes they became infected with other illnesses, and variolation seemed to start entirely new epidemics.