Anatomy & Physiology › Section S · The lymphatic and immune system › Topic S.4
The immune response against pathogens
Bacteria, viruses, fungi and worms invade in very different ways, so the immune system cannot fight them all with one weapon. This topic puts the innate and adaptive defences together, shows which tools work against which kind of pathogen, and explains how pathogens fight back.
In this topic
- A race against the pathogen
- Worked example: why speed matters
- The mucosal immune response
- Defences against bacteria and fungi
- Defences against parasites
- Defences against viruses
- Worked example: a cold virus in the nose
- How pathogens evade immunity
- Microbes we need
- Common mistakes to avoid
- Key takeaways
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