inoculation

mastery
UK /ɪˌnɒkjʊˈleɪʃən/ US /ɪˌnɑkjəˈleɪʃən/noun

card 1 of 4 · synonym

Which word is closest in meaning to 'inoculation' in this sentence?

The government announced plans to accelerate inoculation against COVID-19 throughout the country.