English Dictionary

immunization

noun

(US, uncountable) The process by which an individual is safely exposed in a controlled manner to a material that is designed to prime their immune system against that material.

Immunization is important for preventing the spread of infectious diseases.

意味（1）

(US, uncountable) The process by which an individual is safely exposed in a controlled manner to a material that is designed to prime their immune system against that material.

Immunization against influenza is important for all child-care workers.

意味（2）

(US, countable) One such exposure.

The first immunization a baby gets is against HBV.