A substance or preparation derived from E. coli bacteria, sometimes used historically in medicine or research.
Formed from 'coli' (E. coli) and '-bacterin' (a suffix referring to bacterial preparations or vaccines), emerging from early 20th-century bacteriology when scientists were developing treatments from bacterial cultures.
Early 20th-century researchers experimented with bacterial preparations to treat infections before antibiotics were discovered—colibacterin represents the bridge between folk medicine and modern pharmaceutical development!
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