| Date | 1886 | 
| Author | Escherich | 
| Contribution | Published monograph on micro-organisms of the normal intestine. | 
| Reference | Garrison | 
| Notes | Theodor Escherich made a major advance in understanding the non-pathogenic bacteria, especially in infants. He described Pseudomonas aeruginosa and Bacterium coli commune (called Bacillus coli by Garrison; later named Escherichia coli). According to Friedmann (see 1885 Escherich) Escherich in 1886 described Bacterium lactis aerogenes which was later named Enterobacter aerogenes and also reported a 'bent' bacterium that was probably Campylobacter jejuni. The latter had been reported informally by Escherich in 1884. Its lilnk to colitis and enteritis was reported by others many years later. | 
| Category | Miscellany | 
| Pathogen Class | Bacteria | 
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