Translation guide
The concept of making a person or animal immune to a disease, typically by vaccination. In Japanese, the most common and general term is 予防接種 (yobō sesshu), but other expressions exist depending on context.
The act or process of making someone immune, usually by injection.
The standard term for immunization/vaccination. Used in medical, official, and everyday contexts.
I have my child get immunized.
I made an appointment for a vaccination.
Specifically 'vaccination' (vaccine inoculation). Often used interchangeably with 予防接種, but emphasizes the vaccine itself.
Vaccination is progressing.
A technical/medical term meaning 'immunization' in the sense of conferring immunity. Used in scientific literature.
This vaccine has a high immunization effect.
Referring to immunization schedules, campaigns, or policies.
Documentation proving immunization status.
予防接種 is the broader term for immunization, while ワクチン (vaccine) refers to the substance. ワクチン接種 is common in news about COVID-19 or flu shots. In casual conversation, people often say ワクチンを打つ (get a vaccine shot).
The direct translation 免疫化 (men'ekika) exists but is rarely used outside technical medical contexts. Stick to 予防接種 for general use.
Routine immunizations are free.
The immunization record is in the maternal and child health handbook.