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Microbes
Pioneers in the Science of Microbiology
100
Microbes that live on and in our bodies are referred to as
What is indigenous microbiota or human microbiome
100
Who made significant contributions to the germ theory of disease?
What is Robert Koch (1843–1910)
200
microbes that are awaiting the opportunity to cause disease
What is Opportunistic pathogens
200
Developed several vaccines, including rabies and anthrax vaccines
Who is Louis Pasteur (1822–1895)
300
Pathogens cause two categories of diseases
What are infectious diseases and microbial intoxications
300
Developed methods of fixing and staining bacteria
Who is Robert Koch
400
Acellular infectious agents
What Viruses and prions
400
Observed “animalcules” (bacteria and protozoa)
Who is Anton van Leeuwenhoek (1632–1723)
500
Cellular microorganisms
What are Prokaryotes and eukaryotes
500
Koch’s Postulates: ?Proof of the Germ Theory of Disease
1.A particular microbe must be found in all cases of the disease and must not be present in healthy animals or humans. 2.The microbe must be isolated from the diseased animal or human and grown in pure culture in the laboratory. 3.The same disease must be produced when microbes from the pure culture are inoculated into healthy susceptible laboratory animals. 4.The same microbe must be recovered from the experimentally infected animals and grown again in pure culture.