Which bacterium did Robert Koch identify in 1882?
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Mycobacterium tuberculosis
It has an especially tough outer wall.
💡 Did you know? That is why treatment is so lengthy.
12 questions · History
Tuberculosis is one of humanity's oldest and most persistent diseases and still one of the deadliest infectious illnesses in the world. It is caused by the bacterium Mycobacterium tuberculosis, which mainly attacks the lungs and passes from person to person through the air when the sick cough or sneeze. Typical signs are a lasting cough, night sweats, fever and weight loss; the slow wasting away was once called „consumption“. In the 19th century tuberculosis was ubiquitous in Europe's cities and was seen almost as a romantic „artists' disease“, to which many poets and composers succumbed. The great breakthrough came in 1882 with the German doctor Robert Koch, who discovered the pathogen and later received the Nobel Prize for it. With the BCG vaccine and effective antibiotics the disease seemed conquerable in the 20th century. But treatment takes months, and resistant pathogens against which the usual drugs no longer work appear ever more often. To this day millions of people fall ill each year, especially in poorer countries. Tuberculosis shows that even ancient diseases never vanish entirely as long as poverty and poor care persist.
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Mycobacterium tuberculosis
It has an especially tough outer wall.
💡 Did you know? That is why treatment is so lengthy.
The lungs
This is called pulmonary tuberculosis.
💡 Did you know? But it can also attack other organs.
Consumption
The sick slowly „wasted away“.
💡 Did you know? The name describes the weight loss.
Robert Koch
He made the bacterium visible under the microscope.
💡 Did you know? For this he won the Nobel Prize in 1905.
Through the air (droplets)
Coughing and sneezing release the pathogen into the air.
💡 Did you know? Cramped, poorly aired rooms aid infection.
BCG vaccine
It mainly protects children from severe forms.
💡 Did you know? Perfect vaccine protection does not yet exist.
With antibiotics
Therapy usually lasts at least six months.
💡 Did you know? Stopping early risks resistance.
Antibiotic resistance
Some strains resist almost all drugs.
💡 Did you know? Such cases are hard and costly to treat.
Yes
Over a million people die of it worldwide each year.
💡 Did you know? Poorer countries are especially affected.
Night sweats
Fever and a lasting cough add to it.
💡 Did you know? Patients often cough up blood as it progresses.
As a latent (dormant) infection
The pathogen rests without causing symptoms.
💡 Did you know? With a weakened immune system it can flare up again.
To sanatoriums
The cure relied on fresh mountain air and rest.
💡 Did you know? Thomas Mann's „The Magic Mountain“ tells of this.
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