If you search this book from 1900 you'll find zero hits for 'injection' 'syringe' 'hypodermic' and only 4 hits for 'needle' of which none really refer to the practice of IM injection.

The author lived to 100 years.

"Vaccination a curse and a menace to personal liberty : with statistics showing its dangers and criminality"

by Peebles, J. M. (James Martin), 1822-1922


https://archive.org/details/vaccinationcurse00peeb