This is the 3298th most frequent Catalan word.
vaccí
"Vaccí" in Catalan means "vaccine" in English.
In this sentence, 'vaccí' is used as the subject of the sentence, referring to a medical substance designed to prevent illness.
El vaccí contra la grip és essencial per a la salut de moltes persones.
The flu vaccine is essential for the health of many people.
Here, 'vaccí' is used as a direct object to indicate the development of a medical solution against diseases.
Aquest any han desenvolupat un nou vaccí més eficaç.
This year, they have developed a new, more effective vaccine.
In this example, 'vaccins' is used in plural form, pointing out the general field and topic related to vaccines.