Pronunciation: /ˈvækˌsiːn/
noun a substance used to stimulate the production of antibodies and provide immunity against one or several diseases
A1 A vaccine helps protect you from getting sick.
A2 It is important to get a vaccine before traveling to certain countries.
B1 The flu vaccine is recommended for elderly people and young children.
B2 Some people are hesitant to get the COVID-19 vaccine due to misinformation.
C1 The development of a new vaccine requires extensive research and testing.
C2 Vaccine distribution strategies vary between countries depending on their healthcare systems.