Immune system
The immune system was the bodily system that fought against potentially pathogenic organisms or disease.

In 2152, Jonathan Archer metaphorically described T'Pol as having an "emotional immune system". ()

Pa'nar Syndrome affected the immune system of Vulcans as well as their endocrine system and synaptic pathways. ()

The Denobulan immune system could fend off Borg nanoprobes, but only for a short time. () Species 8472 also had an immune system that could fend off Borg nanoprobes, primarily due to the dense DNA of their s. ()

As a result of their carbon-based biology, the Human immune system was incapable of fighting silicon, such as in the form of a silicon-based virus. ()

In the 2350s and 2360s, a research project at the Darwin Genetic Research Station developed Human children who had an aggressive immune system, capable of attacking disease organisms before they entered a Human body. ()

Ferengi immune systems were rather strong. According to Quark, who wasn't infected by the aphasia virus in 2369, the Ferengi immune system should not be underestimated. ()

Referenced parts of the system 
Antibody
Appendix
Bone marrow
Spleen
T-cells
Tonsils

Pathogens 
Bacteria
Nanoprobe
Polywater
Prion
Virus

Immune related medicine and devices 
Analeptic radiation
Antigen
Anti-intoxicant
Immunosuppressant
Immunotechnology
Protodynoplaser
T-cell stimulator
Vaccine

External link 
 

de:Immunsystem
Biological systems