What is the immune system? The immune system is what protects your body from diseases and infections. It's the bodily system that produces the immune response to defend your body from foreign substances, cells, and tissues.
Your immune system is a network of organs, white blood cells, proteins and chemicals that work together to protect you from invaders (like germs) that can harm you.
The body has a collection of physical barriers to prevent infection, but once these are overcome, we rely on our immune systems to protect us against a wide variety of infections.
The immune system is a vast, interconnected network of organs, cells, and molecules that protects your body from harmful substances, pathogens (like bacteria, viruses, and fungi), and abnormal cells (such as cancer).
What is the Immune System? How Your Body’s Defense Works to Keep You Alive
To do its job, your immune system needs to be able to tell what does and doesn't belong in your body. That way it knows which things to fight off and which to leave alone.
Hartford Courant: Yale: Using the immune system as a window into your current and future health
Yale: Using the immune system as a window into your current and future health
We are now approaching six years since COVID-19 was declared a pandemic by the World Health Organization, yet talk of vaccines and our immune systems persists in our conversations — from political ...
New Scientist: You can upgrade your immune system, but not in the way you think
You can upgrade your immune system, but not in the way you think