Vaccination (noun)

1. The act of administering a vaccine to protect against a disease.
2. The injection of a vaccine into the body to prevent or treat a disease.

Origin:

Late 17th century: from latin vaccinium "smallpox", from vacca "cow" (because cowpox was used to immunize against smallpox).

Examples:

1. The vaccination against the flu is now available at the clinic.
2. The widespread vaccination against COVID-19 has helped control the pandemic.
3. The child is due for their routine vaccinations.
4. The vaccination program has been successful in reducing the incidence of the disease.
5. The mandatory vaccination policy has been controversial among some groups.