This is the 8169th most frequent French word.
vacciné
"Vacciné" means "vaccinated."
Here, 'vacciné' is used as an adjective to describe the subject as being protected by vaccination against a specific illness.
Je suis vacciné contre la grippe cette année.
I am vaccinated against the flu this year.
In this sentence, 'vacciné' is utilized as the past participle of the verb 'vacciner,' expressing that an action (vaccination) was carried out by the subject (they).
Ils ont vacciné des centaines de personnes en une journée.
They vaccinated hundreds of people in one day.
Here, 'vacciné' is employed again as a past participle in a passive construction, indicating the requirement for the children to have received vaccination before attending school.