Since viruses were not known at the time of Koch's postulates they also don't apply to viruses so stop trying to apply them to viruses and stop using sources that are trying to apply Koch's postulates to viruses.
Saying that Koch's postulates shouldn't be used for viruses is akin to saying that modern physics shouldn't be applied to black holes because the laws of physics were determined before black holes were discovered. Yes, Koch wrote his postulates before viruses were allegedly discovered, but that doesn't mean that logic should be suspended just because of that. Koch's postulates were reasonable. The problem was that the emerging field of virology couldn't find viruses using Koch's postulates, so they watered down the standards in order to "find" these "viruses" with River's postulates. Viroliegy.com has a good article on this here:
Thomas Rivers Revision of Koch’s Postulates (1937) | viroliegy.com
Quoting from it:
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In 1884, German scientist Robert Koch devised a set of logic-based criteria that needed to be met in order to prove a specific pathogen caused a disease. By 1890, he had refined and published them. At the time, Koch’s criteria were developed for bacteria as “viruses” were unknown and were not officially “discovered” until 1892 with the Tobacco Mosaic “virus” for plants. The four original Postulates were:
1. The microorganism must be found in abundance in all cases of those suffering from the disease, but should not be found in healthy subjects.
2. The microorganism must be isolated from a diseased subject and grown in pure culture.
3. The cultured microorganism should cause the exact same disease when introduced into a healthy subject.
4.The microorganism must be reisolated from the inoculated, diseased experimental host and identified as being identical to the original specific causative agent.
2. The microorganism must be isolated from a diseased subject and grown in pure culture.
3. The cultured microorganism should cause the exact same disease when introduced into a healthy subject.
4.The microorganism must be reisolated from the inoculated, diseased experimental host and identified as being identical to the original specific causative agent.
By 1937, it was very clear that virologists were unable to satisfy any of Koch’s Postulates in order to prove invisible particles assumed to be “viruses” existed and could cause disease. Even Robert Koch himself had difficulty with his own Postulates which led him to wiggle around some of them in attempts to “prove” pathogenicity of certain bacteria. Instead of accepting that the Postulates, as originally stated, worked and disproved the Germ Theory, virologists looked to various indirect immunological methods to prove their claims.
This led to Thomas Rivers and his own attempts to water down Koch’s Postulates by revising them to allow virologists even more wiggle room and expanding the 4 Postulates to 6. Unfortunately for all of virology, Koch had unintentionally trapped them in a logical prison for which they still can not free themselves from. If virologists deny Koch’s original Postulates, they are denying logic itself. Presented below are highlights from River’s attempted revision:
[snip]
These are just a few highlights and I highly recommend reading the full 12 pages as there are many interesting admissions I unfortunately had to leave out for length/editing purposes. It is clear that Rivers revisions of Koch’s Postulates are not the same as those originally proposed by Koch himself. Rivers even admits numerous times that his criteria are different and laid out three main ways that they differ:
1. He allows for the “virus” not to be found in every case of disease
2. He introduces the concept of “virus” carriers
3. He states that “viruses” do not need to be grown in culture
All Rivers did was deliberately weaken Koch’s Postulates in order to make life easier for virologists to skirt around established rules of logic. Anyone claiming that they fulfilled Koch’s Postulates by using the criteria laid forth by Rivers are outright lying and being intentionally fraudulent…which in all honesty, sums up virology to a T.
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