Webster's dictionary defines inoculation as "the act or process of improving." Also, I find that "inoculation may be protective, when the substance injected aims to secure immunity; or curative, when an anti-toxin is injected as a remedy."
Proceedings of the Iowa Academy of Science
© Copyright 1937 by the Iowa Academy of Science, Inc.
Shawhan, Fae M.
"Inoculation Against Spring Fever in the Elementary Course in Zoology,"
Proceedings of the Iowa Academy of Science, 44(1), 209-211.
Available at: https://scholarworks.uni.edu/pias/vol44/iss1/97