innate-immunity

The immune system is not a single organ or a single type of cell — it is a distributed surveillance network that distinguishes your own tissue from foreign invaders within minutes, then builds custom molecular weapons if the first response is not enough. Here is how.

Explore how the immune system defends your body — from skin barriers to T cells, vaccines, autoimmunity, and cancer immunotherapy.

How complement proteins amplify immune responses through coordinated molecular cascade activation