Download Welcome to the invisible world of microbiology

Welcome to the
invisible world of
microbiology
The World of Microbiology:
Mastering the invisible,
invincible, treatable and
preventable
Early life-forms
The Beginning of Microbiology
Anton van Leeuwenhoek (1674)
Animalcules
Louis Pasteur (1857)
Golden age of microbiology
Spontaneous generation controversy
Robert Koch
Koch’s postulates
Anton van Leeuwenhoek
The Beginning of Microbiology
Anton van Leeuwenhoek (1674)
Animalcules
Louis Pasteur (1857)
Golden age of microbiology
Spontaneous generation controversy
Robert Koch
Koch’s postulates
Louis Pasteur
The Beginning of Microbiology
Anton van Leeuwenhoek (1674)
Animalcules
Louis Pasteur (1857)
Golden age of microbiology
Spontaneous generation controversy
Robert Koch
Koch’s postulates
Robert Koch
What are bacteria?
Typical Bacterial Cell
Why can’t we see them with the naked eye?
Because they are very, very small
Rod
2mm long
Coccus
1mm
Under the microscope
But how small it that?
To make a bacterium on
your hand grow as big
as this one, how big
would the hand need to
grow?
Your hand would need to be as long as 150 busses!
150
Time for an experiment
Let’s try and see some real bacteria
Under the microscope
Good bugs & Bad bugs
Bad
Good
Salmonella
Good bugs & Bad bugs
Bad
Good
Gonococcus
Good bugs & Bad bugs
Bad
Good
Lactobacillus
Good bugs & Bad bugs
Bad
Good
Campylobacter
Good bugs & Bad bugs
Bad
Good
Staphylococcus
Good bugs & Bad bugs
Bad
Good
Penicillium
Bacterial Growth
Favourable conditions
Cells rapidly increase in number
Bacterial Growth!
Microorganisms and Temperature
Bacteria can spread easily
Later in the course
Superbugs & infection control
Experiments on hand washing