| 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 |