Koch Germany

discovery date of tuberculosis bacillus and what nationality?

medical discoveries

The bacillus-causing tuberculosis, Mycobacterium tuberculosis, was identified and described on March 24, 1882 by Robert Koch (Germany). He received the Nobel Prize in physiology or medicine in 1905 for this discovery. Koch did not believe that bovine (cattle) and human tuberculosis were similar, which held back the recognition of infected milk as a source of infection. Later, this source was eliminated by the pasteurization process. Koch announced a glycerine extract of the tubercle bacilli as a "remedy" for tuberculosis in 1890, calling it 'tuberculin'. It was not effective, but was later adapted by von Pirquet in a test for pre-symptomatic tuberculosis.

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Koch Chromatic Harmonica  Vintage
Koch Chromatic Harmonica Vintage
$40.00
Koch Harmonica Vintage Genuine Chromatic Key of C Made In Germany FREE SHIPPING
Koch Harmonica Vintage Genuine Chromatic Key of C Made In Germany FREE SHIPPING
$47.77
VINTAGE KOCHS INTERNATIONAL PITCH MADE IN GERMANY HARMONICA
VINTAGE KOCHS INTERNATIONAL PITCH MADE IN GERMANY HARMONICA
$9.95
KOCH Harmonica Chromatic Made in Germany excellent condition in original box
KOCH Harmonica Chromatic Made in Germany excellent condition in original box
$85.00
Koch Chromatic Hormonica Made in Germany Key C
Koch Chromatic Hormonica Made in Germany Key C
$17.50
VINTAGE KOCH CHROMATIC HARMONICA 980 40 M C IN ORIG BOX MADE IN GERMANY
VINTAGE KOCH CHROMATIC HARMONICA 980 40 M C IN ORIG BOX MADE IN GERMANY
$24.00
KOCH Harmonica Chromatic Made in Germany excellent condition in original box
KOCH Harmonica Chromatic Made in Germany excellent condition in original box
$350.00
Vintage Harmonica Koch Chromatic 980 40 M Germany key C Box mouth organ NICE
Vintage Harmonica Koch Chromatic 980 40 M Germany key C Box mouth organ NICE
$35.00
Koch C C chromatic Chromonica harmonica 260 40 Chromonika I 1 Chrometta 8 10
Koch C C chromatic Chromonica harmonica 260 40 Chromonika I 1 Chrometta 8 10
$149.00
THE HOHNER CHROMATIC KOCH HARMONICA MADE IN GERMANY IN KEY OF C
THE HOHNER CHROMATIC KOCH HARMONICA MADE IN GERMANY IN KEY OF C
$19.99
KOCH HARMONICA ORCHESTRA  Made in Germany
KOCH HARMONICA ORCHESTRA Made in Germany
$59.99
Koch Harmonica Chromatic Made in West Germany Tuned to C
Koch Harmonica Chromatic Made in West Germany Tuned to C
$22.99
Vintage Kochs International Pitch Made in Germany Harmonica
Vintage Kochs International Pitch Made in Germany Harmonica
$19.99
CHRONOMATIC KOCH HARMONICA KEY OF C IN ORIG BOX MADE IN GERMANY
CHRONOMATIC KOCH HARMONICA KEY OF C IN ORIG BOX MADE IN GERMANY
$34.99
VINTAGE POST WW2 Koch Harmonica Tuned to C MADE IN WEST GERMANY
VINTAGE POST WW2 Koch Harmonica Tuned to C MADE IN WEST GERMANY
$49.99
Vintage Koch Chromatic Harmonica C
Vintage Koch Chromatic Harmonica C
$37.95
VINTAGE KOCH ORCHESTRA C HARMONICA GERMAN MADE
VINTAGE KOCH ORCHESTRA C HARMONICA GERMAN MADE
$119.99
Vintage Koch Harmonica Original Box Key of C Germany Musical Mouth Organ
Vintage Koch Harmonica Original Box Key of C Germany Musical Mouth Organ
$69.95
VINTAGE KOCH ALPINA HARMONICA KEY OF D MADE IN GERMANY
VINTAGE KOCH ALPINA HARMONICA KEY OF D MADE IN GERMANY
$29.00
VINTAGE KOCH 980 40 CHROMATIC HARMONICA C
VINTAGE KOCH 980 40 CHROMATIC HARMONICA C
$29.99
Vintage Koch Alpina Double Sided Harmonica Made in Germany
Vintage Koch Alpina Double Sided Harmonica Made in Germany
$40.00
Old Vintage CHROMATIC KOCH HARMONICA 980 40 M Key of C With Box Made in Germany
Old Vintage CHROMATIC KOCH HARMONICA 980 40 M Key of C With Box Made in Germany
$75.95
REDUCED  VINTAGE KOCH HARMONICA ORCHESTRA  Made in Germany WITH BOX NICE
REDUCED VINTAGE KOCH HARMONICA ORCHESTRA Made in Germany WITH BOX NICE
$69.95
Harmonica Chromatic Koch Harmonica in Original Box Made In Germany
Harmonica Chromatic Koch Harmonica in Original Box Made In Germany
$44.99
Vintage Koch Harmonica Chromatic Made in German in original box
Vintage Koch Harmonica Chromatic Made in German in original box
$39.95
Vintage Chromatic Koch Hermonica Made In Germany
Vintage Chromatic Koch Hermonica Made In Germany
$15.85
KOCH Harmonica Chromatic Made in Germany excellent condition in original box
KOCH Harmonica Chromatic Made in Germany excellent condition in original box
$30.00


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