Quote Originally Posted by Taunton Blue Genie View Post
inoculate
/ɪˈnɒkjʊleɪt/
verb
treat with a vaccine to produce immunity against a disease; vaccinate.
"he inoculated his tenants against smallpox"
There is an important scientific difference. I'll leave it to you to look it up the detail. Smallpox 'jab' being called an inoculation is largely correct.