Autoimmune Disease - An umbrella term for a range of conditions in which the immune system mistakenly attacks healthy tissue in the body.⏎
Cell Membrane - A semipermeable barrier that separates the interior of a cell from the external environment.⏎
Bacilli - A taxonomic class of bacteria.⏎
Bioterrorism - The deliberate release of a virus, bacterium, or other biological agent to cause illness and death in people, animals, or plants.⏎