class #3- germ theory Flashcards
who created the first microscope?
Antoine Leevanhoak
what contributions did Louis Pasteur bring to the scientific world
-father of microbiology
-dispelled the idea of spontaneous generation
-pasteurization
-first to develop vaccines
what is spontaneous generation
the idea that life arises from nothing
how did pasteur prove that spon. generation was false
created s-shaped flasks that were in contact with air, but bacteria could not reach the broth at the bottom. i.e. proves that microbes cannot arise from non-living materials
what did Joseph Lister contribute
that washing surgical instruments is a good idea
how did Lister first clean instruments
used carbolic acid (phenol) to sterilize bad wounds and surgical tools to prevent infections
what is Semmelweis contribute
he said that hand washing was a good idea!
what is cadaverous poisoning
Poisonous particles form dead bodies, spreading disease in hospitals
how does Pasteur complete Semmelweis’s ideas
he concluded that doctors could spread disease through unsanitary hands
what is pasteurization
a way to prevent spoilage, heating liquid to kill bacteria
who was the first to discover that yeast were alive
pasteur
who was john snow and what was his contribution
-a physician and the first epidemiologist
-john snow removed the handle of the Broad Street Pump and saved lives
what was the Broad Street Pump case
-open sewage resulted in an outbreak of cholera
- first demonstration of fecal-oral disease
who was Jenner and what did he contribute
contributed to the first vaccines through the smallpox virus
how was the first vaccine created
through cowpox, jenner scraped skin of healthy people and rubbed scabs from cowpox on them, then these people were protected from smallpox
