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  2. Molecular Koch's postulates - Wikipedia

    en.wikipedia.org/wiki/Molecular_Koch's_postulates

    As per Falkow's original descriptions, the three postulates are: [1] "The phenotype or property under investigation should be associated with pathogenic members of a genus or pathogenic strains of a species. Specific inactivation of the gene(s) associated with the suspected virulence trait should lead to a measurable loss in pathogenicity or ...

  3. Stanley Falkow - Wikipedia

    en.wikipedia.org/wiki/Stanley_Falkow

    Falkow is known as the father of the field of molecular microbial pathogenesis. [1] He formulated molecular Koch's postulates, which have guided the study of the microbial determinants of infectious diseases since the late 1980s. [2] Falkow spent over 50 years uncovering molecular mechanisms of how bacteria cause disease and how to disarm them. [1]

  4. Koch's postulates - Wikipedia

    en.wikipedia.org/wiki/Koch's_postulates

    In 1988, microbiologist Stanley Falkow developed a set of three Molecular Koch's postulates for identifying the microbial genes encoding virulence factors. First, the phenotype of a disease symptom must be associated with a specific genotype only found in pathogenic strains. Second, that symptom should not be present when the associated gene is ...

  5. Scientists Just Discovered A Potential New Alzheimer's Cause

    www.aol.com/scientists-just-discovered-potential...

    The exact cause of Alzheimer’s disease has long evaded scientists, but experts typically suggest there are likely several factors (like genetics, environment, and lifestyle) that contribute to ...

  6. Microbial pathogenesis - Wikipedia

    en.wikipedia.org/wiki/Microbial_pathogenesis

    In 1996, Fredricks and Relman suggested the following postulates for the novel field of microbial pathogenesis. [2] [3](i) A nucleic acid sequence belonging to a putative pathogen should be present in most cases of an infectious disease.

  7. Composition of the human body - Wikipedia

    en.wikipedia.org/wiki/Composition_of_the_human_body

    Parts-per-million cube of relative abundance by mass of elements in an average adult human body down to 1 ppm. About 99% of the mass of the human body is made up of six elements: oxygen, carbon, hydrogen, nitrogen, calcium, and phosphorus. Only about 0.85% is composed of another five elements: potassium, sulfur, sodium, chlorine, and magnesium ...

  8. Human variability - Wikipedia

    en.wikipedia.org/wiki/Human_variability

    A particular finding regarding human variability due to difference in DNA made possible by the Human Genome Project is that any two individuals share 99.9% of their nucleotide sequences. [ 27 ] The Human Variome Project is a similar undertaking with the goal of identification and categorization of the set of human genetic variation ...

  9. Germ theory's key 19th century figures - Wikipedia

    en.wikipedia.org/wiki/Germ_theory's_key_19th...

    These postulates created the foundation for medical bacteriology. Koch did not have an understanding of viruses, so his second postulate is impossible for viral bodies. However, these postulates were causal claims and were reformed over many years. They knowledge that a certain germ is the cause of a particular illness. [72]