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Mar 19, 2024 · Edwin Klebs was a German physician and bacteriologist noted for his work on the bacterial theory of infection. With Friedrich August Johannes Löffler in 1884, he discovered the diphtheria bacillus, known as the Klebs-Löffler bacillus. Klebs was assistant to Rudolf Virchow at the Pathological
- The Editors of Encyclopaedia Britannica
However, by investigating microorganisms, which were generally discoun ted as external causes, Klebs applied the familiar methods to a problem quite different from those which contemporary pathologists usually examined. Moreover, from his studies Klebs concluded that microorganisms were not merely one of many possible causes.
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Humans have been living with—and using—microorganisms for much longer than they have been able to see them. Historical evidence suggests that humans have had some notion of microbial life since prehistoric times and have used that knowledge to develop foods as well as prevent and treat disease.
- Fermented Foods and Beverages
- The Iceman Treateth
- Early Notions of Disease, Contagion, and Containment
- The Birth of Microbiology
People across the world have enjoyed fermented foods and beverages like beer, wine, bread, yogurt, cheese, and pickled vegetables for all of recorded history. Discoveries from several archeological sites suggest that even prehistoric people took advantage of fermentationto preserve and enhance the taste of food. Archaeologists studying pottery jars...
Prehistoric humans had a very limited understanding of the causes of disease, and various cultures developed different beliefs and explanations. While many believed that illness was punishment for angering the gods or was simply the result of fate, archaeological evidence suggests that prehistoric people attempted to treat illnesses and infections....
Several ancient civilizations appear to have had some understanding that disease could be transmitted by things they could not see. This is especially evident in historical attempts to contain the spread of disease. For example, the Bible refers to the practice of quarantining people with leprosy and other diseases, suggesting that people understoo...
While the ancients may have suspected the existence of invisible “minute creatures,” it wasn’t until the invention of the microscope that their existence was definitively confirmed. While it is unclear who exactly invented the microscope, a Dutch cloth merchant named Antonie van Leeuwenhoek (1632–1723) was the first to develop a lens powerful enoug...
Developed, verified, and popularized between 1850 and 1920, germ theory holds that certain diseases are caused by the invasion of the body by microorganisms.
- Meg Matthias
Jul 24, 2023 · Definition. by John Horgan. published on 24 July 2023. Available in other languages: French. Cholera Bacterium. Ronald Taylor, Tom Kirn, Louisa Howard (Public Domain) The Germ Theory, which emerged in the late 19th century, demonstrated that microscopic germs caused most human infectious diseases.
Most people today, even those who know very little about microbiology, are familiar with the concept of microbes, or “germs,” and their role in human health. Schoolchildren learn about bacteria, viruses, and other microorganisms, and many even view specimens under a microscope.
