Articles
How vaccines actually work: A simple guide
Content
It's all about the germ
Live vaccines
Inactivated vaccines
Vaccines based on an organism component
Messenger RNA (mRNA) vaccines
Toxoid vaccines
What you can do
It's all about the germ
Live vaccines
Inactivated vaccines
Vaccines based on an organism component
Messenger RNA (mRNA) vaccines
Toxoid vaccines
What you can do
Vaccines based on an organism component
These vaccines use only parts of the germ, like a protein or sugar. Your immune system learns to recognize it without being exposed to the whole germ. These vaccines protect against:
- COVID-19.
- Hepatitis B.
- Human papillomavirus (HPV).
- Meningococcal disease.
- Pneumococcal disease.
- Shingles.
- Whooping cough, also called pertussis.
These vaccines can generally be tolerated by most people, including those with weakened immune systems or serious health conditions.