L1 Introduction to Microbiology March 2013 FN [Compatibility Mode]
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Transcript of L1 Introduction to Microbiology March 2013 FN [Compatibility Mode]
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Overview of MedicalMicrobiology in relation to
human health 1
Dr F Noordeen
Department of Microbiology
Faculty of Medicine
Peradeniya
March 2013
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Learning outcomes
To internalize the interactions of micro andmacro-organisms with human beings
To state why medical undergraduates needto know about micro and macro-organisms
To list what medical microbiologists andparasitologists do
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Microbial world
Biological world composed of microbes
Microorganisms are
Unicellular
Too small to be seen by the naked eye
Predominate in relation to biomass and number
of species Microbial colonies / communities can be seen
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Archaea
Bacteria
Algae
Protozoa
Fungi
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Where are micro-organisms found?
Everywhere water is found! Wherever any higher forms of l ife are present
Microbes from Space
ASM News 71 (4): 179-186
Normal flora of the humanbody
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Fermentation in the food industry!
OF USE TO MAN OF USE TO MAN OF USE TO MAN OF USE TO MAN
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Thiobacil lus thiooxidans + sulpher
Removes radiioactively contaminatedsurface layers of concrete
Industrial microbiology
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Sewage treatment facili ty
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Antimicrobial agents
vaccines
Pharmaceutical microbiology
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Biotechnology
Drugs /hormones prepared
by recombinant technology
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Microorganisms benefit humans
Essential for maintaining balance of natureand sustaining l ife
Food production
Waste removal
Antibiotic production
Production of vaccines
Microorganisms are ubiquitous
Microorganisms are abundant
Most microorganisms are non pathogens
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Food microbiology
Agricultural microbiology
Increased risk of microbes entering food chain
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Intense animal husbandry
Bovine spongiform encephalopathy
United kingdom 1985-1995
PRIONS
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Bioterrorism
In 1763 in the New World,
smallpox infected blankets were distributed
to Native Americans startingan epidemic which kil led thousands.
Controversy stil l exists as to whether
this was deliberate bioterrorism or a tragic mistake,
though there were several instances of this happening.
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Bird flu
I think I may have bird flu!!
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HIV / AIDS
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Microbiologists study microscopic life.
They seek to understand how bacteria,viruses and other microorganisms
behave and how they affect the world
especially our world for good or ill
(Bernard Dixon ASM News 1997 63(3)
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Medical microbiologists
and
Parasitologists
(those who work with
microorganismsin relation to human health)
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Set up a diagnostic service
Infection control in hospital
Prevention of infections in communityAntibiotic use and misuse
Advice on policy related to humaninfections
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Departments of Microbiology &
Parasitology Academic staff -
Microbiology
Dr F Noordeen (Head) Dr CN Ratnatunga Prof V Thevanesam
Dr VLC Liynapathirana Dr BN Dissanayake
Non academic staff Technical Clerical Lab attendants and
Labourer
Academic staff Parasitology
Dr D Iddawela (Head)
Dr R Morel
Dr DN Atapattu Dr S Wickramasinghe
Non academic staff
Technical
Clerical
Lab attendant
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Medical Microbiology and Parasitology
Learn about micro-organisms whichcause disease in human host
Prove causation
Organism Disease Disease Organisms
Diagnose specific cause of aninfection
Antimicrobials which are used intreatment
Prevention of infection