In addition to the ingredients that maintain their safety and efficacy ✅, vaccines have antigens, a key component to generate

In addition to the ingredients that maintain their safety and efficacy ✅, vaccines have antigens, a key component to generate protection against diseases in our bodies.

Learn how they work ▶️ who.int/news-room/feat… #GetAllYourShots. https://t.co/3CVDBJRw4n