Anaphylaxis is an acute systemic (multi-system) and severe type I hypersensitivity allergic reaction in humans and other mammals. [1]

Allergy occurs when a person’s immune system reacts to substances in the environment that do not bother most people. [2]

An immune system is a collection of biological processes within an organism that protects against disease by identifying and killing pathogens and tumour cells. [3]

God. The poor kids who live in bubbles. It must be awkward. They’d need assistance getting through doorways… and going upstairs. I imagine moving around in crowded places would be difficult too. Not to mention being near people without really being near them, watching them as they rush around you. The irony is certainly fucked up and twisted.

[1] Anaphylaxis -From Wikipedia, the free encyclopedia
[2] The Australasian Society of Clinical Immunology and Allergy – What is allergy?
[3] Immune system From Wikipedia, the free encyclopedia