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History
Contributions to Micro
Question | Answer |
---|---|
Size of average virus | 100 nm |
Size of Coccus, Rickettsia, and Bacillus | 1 micrometer |
Size of flagellum | 10 nm |
Most bacteria are sized between | 1-10 micrometers |
Zacharias Janssen | Built 1st compd microscope |
Robert Hooke | First termed cells |
van Leeuwenhoek | discovered microbes with a single lens contraption that had 300x |
Edward Jenner | Vaccination in 1796- milkmaid pox |
Semmelweis | Mathernal morbidity and morgue work link- 1850 |
John Snow | Linked water pumps to cholera outbreak- 1853-4 |
Pasteur | Disproved spontaneous generation using long necked flasks; proposed germ theory (human disease arises from infection of germs); rabies vaccine, silkworm disease and many others |
Robert Koch | Verified germ theory; Koch's postulates are still used to day in iding diseases-discovered 20+ diseases from 1875-1900; Culture methods, TB and cholera as well as many others |