Medical Microbiology - Slide Shows

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Anaerobic Bacteria

The anaerobes are organisms that grow only in the absence of molecular oxygen. There are several major groups, listed below as links to separate topics and their slide sets. A general set of information on anaerobic bacterial culture is also shown below.

THE CULTURE OF ANAEROBIC ORGANISMS: Powerpoint Slides

See: Bacteroides
Clostridium botulinum
Clostridium difficle
Clostridium perfringens

Clostridium tetani

Antibiotic Resistance

Increasingly a concern for medical practitioners, antibiotic resistance is an area where rapid change means frequent updates on the status of a particular pathogen. Click on the links below for theoretical discussions, laboratory techniques for determining pathogen resistance and CDC updates.

Powerpoint Slides | Laboratory | Web Links | On the Farm

Arboviruses

In the U.S. viral diseases transmitted by arthropods include the encephalitides and Colorado tick fever virus. These are less severe than arboviral diseases found in more tropical climates, but some are on the rise as agents of human infection. West Nile virus in particular is of increasing interest as an agent of human disease transmitted during the summer months via mosquito bites.

Powerpoint Slides | Web Links


Aspergillosis and Aspergillus fumigatus

Aspergillus fumigatus and other members of the Aspergillus genus are associated with allergies, bronchitis and "Sick Building Syndrome". Find out more about this opportunistic fungal pathogen at the links below:

Powerpoint Slides | Web Links


Bacillus anthracis

This bacterial agent is a gram-positive spore forming bacillus, and carried in some animal populations, especially in developing countries like Africa. It causes the disease anthrax, which is considered a zoonotic disease. In the last decade, this organism has gained prominence because of its potential for military use.

Powerpoint Slides | Web Links


Bacterial Meningitis

Bacterial meningitis can be caused by a number of different species; however, Neisseria meningitidis is an important pathogen that continues to cause meningitis, especially within specific patient populations.

Powerpoint Slides | Laboratory


Bacterial Physiology

Bacteria use many different types of physiological mechanisms. Those that cause human disease are a little less complicated. Many are facultative anaerboes, meaning that they can switch metabolism to take advantage of available nutrients.

Powerpoint Slides


Bacterial Toxins

Many types of bacteria produce toxins. These excreted protein molecules act in many different ways to cause damage to human tissues.

Powerpoint Slides


Bacteroides

This group of endogenous anaerobes is gram-negative and does not form spores. They are members of the normal human bacterial flora of mucous membranes and a common cause of endogenous infections.

Powerpoint Slides | Web Links


Bacteriology, Basic

An introduction to bacterial shapes, sizes and growth patterns. The slideshow includes information about inhibition of bacterial growth by chemical and physical agents and antibacterial drugs.

Powerpoint Slides | Laboratory


Blastomycosis

This infection is classified as a mycosis. The fungal pathogen causes either systemic or cutaneous infection, depending upon the route of exposure. Disease is endemic to the Ohio River valley in the U.S.

Powerpoint Slides | Web Links


Bordetella pertussis

Pertussis is the disease caused by Bordetella pertussis and it is also known as "whooping cough". This infection was once included in a group of "childhood diseases", that are now reduced in incidence because of active immunization programs in industrialized countries.

Lecture Notes | Powerpoint Slides


Borrelia species

Lyme disease is caused by one prominent member of the genua Borrelia but there are others. Borrelia burgdorferi is known for the "bulls-eye" lesions of Lyme disease but Borrelia recurrentis causes another disease transmitted by the bite of arthropods. Read more at the links below.

Powerpoint Slides | Web Links


Brucellosis

Brucellosis is a zoonotic infection caused by one of four main pathogens in the genus Brucella. Diesease is associated with exposure to the appropriate animal reservoir.

Powerpoint Slides | Web Links



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