Examples of postulate in the following topics:
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- Koch's postulates are four criteria designed in the 1880's to establish a causal relationship between a causative microbe and a disease.
- Koch's postulates are four criteria designed to establish a causal relationship between a causative microbe and a disease.
- The postulates were formulated by Robert Koch and Friedrich Loeffler in 1884 and refined and published by Koch in 1890.
- Therefore, while Koch's postulates retain historical importance and continue to inform the approach to microbiologic diagnosis, fulfillment of all four postulates is not required to demonstrate causality.
- Koch's postulates have also influenced scientists who examine microbial pathogenesis from a molecular point of view.
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- Even in Koch's time, it was recognized that infectious agents could be responsible for disease without fulfilling all of the postulates.
- Koch's postulates were developed in the 19th century as general guidelines to identify pathogens that could be isolated with the techniques of the day.
- Currently, a number of infectious agents are accepted as the cause of diseases despite their not fulfilling all of Koch's postulates.
- Therefore, while Koch's postulates retain historical importance and continue to inform the approach to microbiologic diagnosis, fulfillment of all four postulates is not required to demonstrate causality.
- In summary, a body of evidence that satisfies Koch's postulates is sufficient but not necessary to establish causation.
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- Robert Koch identified anthrax as a disease agent and formulated postulates that are still used to research diseases today.
- Probably as important as his work on tuberculosis, for which he was awarded a Nobel Prize in 1905, are Koch's postulates.
- These postulates stated that to establish that an organism is the cause of a disease, it must be found in all cases of the disease examined.
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- The use of these new methods has led to revised versions of Koch's postulates.
- Molecular Koch's postulates are a set of experimental criteria that must be satisfied to show that a gene found in a pathogenic microorganism encodes a product that contributes to the disease caused by the pathogen.
- Genes that satisfy molecular Koch's postulates are often referred to as virulence factors (i.e., what makes the pathogen virulent).
- The following set of Koch's postulates for the 21st century have been suggested:
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- Alexander Fleming observed antibiosis against bacteria by a fungus of the genus Penicillium and postulated the effect was mediated by an antibacterial compound named penicillin whose antibacterial properties have been widely exploited for chemotherapy.
- Fleming postulated the effect was mediated by an antibacterial compound named penicillin, and that its antibacterial properties could be exploited for chemotherapy.
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- The existence of unseen microbiological life was postulated by Jainism, which is based on Mahavira's teachings as early as 6th century BCE.
- Based on these experiments, he devised criteria for establishing a causal link between a microbe and a disease and these are now known as Koch's postulates.
- Although these postulates cannot be applied in all cases, they do retain historical importance to the development of scientific thought and are still being used today.
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- In 1928 Alexander Fleming observed antibiosis against bacteria by a fungus of the genus Penicillium and postulated the effect was mediated by an antibacterial compound, penicillin, and that its antibacterial properties could be exploited for chemotherapy.
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- Cavalier-Smith has postulated that the Verrucomicrobia belong in the clade Planctobacteria in the larger clade Gracilicutes. 16S rRNA data corroborate that view.
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- Cavalier-Smith has postulated that the Planctomycetes are within the clade Planctobacteria in the larger clade Gracilicutes.
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- It has been postulated that it may play an important role in the natural stomach ecology [1].
- It has been postulated that it may play an important role in the natural stomach ecology.