Question: what is the role vaccines

Jacinta Nzilani answered on 22 Jul 2025:

Hey there! 👋

💉 What Is the Role of a Vaccine?

A vaccine trains your immune system to fight specific diseases before you get infected. 🦠🛡️

🔍 How It Works:

A vaccine contains weakened or inactive parts of a germ (like a virus or bacteria).

Your immune system sees it as a threat and builds defenses (antibodies 🧪).

If you later meet the real germ, your body is ready to fight it fast! 💪

📘 According to Science:
Vaccines prevent illness, reduce spread, and save lives.

✅ Summary:
A vaccine prepares your body in advance to protect you from serious diseases. It’s like giving your immune system a practice match! 🎯💉