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Microorganisms of the Gastrointestinal Tract

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Kaye Stubbs

on 30 September 2013

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Transcript of Microorganisms of the Gastrointestinal Tract

MICRO TALK
Vibrio parahaemolyticus
Vibrio parahaemolyticus
is a gram negative anteric bacterium that is categorized or presented in the same family as those that cause cholera.
It lives in brackish saltwater and causes gastrointestinal illness in humans.
V. parahaemolyticus
naturally inhabits coastal waters in the United States , Canada and also in The Caribbean, is present in higher concentrations during summer.
Cryptosporidiosis
Cryptosporidium is a coccidian protozoan parasite that has gained a lot of attention in the last 20 years as a clinically important human pathogen.
Mumps
Escherichia Coli
Discovered by: Theodor Escherich 

Was a German-Austrian pediatrician.

Which was named after him in 1919

• It is a halophilic or salt-loving organism.
• Usually these symptoms occur within 24 hours of ingestion. Illness is usually self-limited and lasts 3 days. Severe disease is rare and occurs more commonly in persons with weakened immune systems.
• This disease is self limiting and best treated with plenty of water replenishment (rehydration). Antibiotics are usually not necessary but in very sever cases tetracycline, ampicillin or ciprofloxacin could be used.
TREATMENT
Metronidazole.
Quinacrine Hydrochloride.

Both effective within a week.
Microbial Profile

Diseases of the Digestive System
Microorganisms are organisms that are too small to be seen with the naked eye.
Microorganisms that harm the digestive system.
Bacterial, Viral, Fungal, Helminthic, Protozoan Digestive Diseases.


How does E. coli spread?
Causative Agent
E.coli
Diseases
Food poisoning

TYPE OF MICROORGANISM
Bacteria
Habitat
Colon or Large Intestine
Morphology
Bacillus (Rod-shape)
Gram Action
Negative (-)
Escherichia coli
Microbial Profile
Disease
Giardiasis
CAUSATIVE AGENT
Giardia lamblia
TYPE OF MICROORGANISM
PROTOZOAN PARASITE
MORPHOLOGY
PEAR-SHAPED
HABITAT
INTESTINAL WALL
GRAM ACTION
NEGATIVE
Microbial Profile
DISEASE: Conch Poisoning


CAUSATIVE AGENT
Vibrio parahaemolyticus
TYPE OF MICROORGANISM
BACTERIA
MORPHOLOGY
BACILLUS (CURVED ROD SHAPED)
HABITAT
GASTROINTESTINAL REGION
GRAM STAIN
NEGATIVE
Discovered by microbiologist
Van Leeuwenhoek
in 1618 by examination of his own diarhheal feces.

Giardiasis is a prolonged diarrheal disease caused by
Giardia lamblia.

Giardia lamblia is a flagellated protozoan that firmly attaches itself to human intestinal walls by their ventral sucker and reproduces by binary fission.

Giardia lamblia infects humans, but is also one of the most common parasites infecting cats, dogs and birds.
MICROBIAL PROFILE
TREATMENT


HABITAT


GRAM STAIN
NEGATIVE
DAMP AREAS
CAUSATIVE AGENT
DISEASES
MUMPS VIRUS
Paramyxovirus
TYPE OF MICROORGANISM
VIRUS
MORPHOLOGY
IBUPROFEN, PARACETAMOL
COCCUS
Paracetamol
Giardiasis
Mode of transmission:
Ingestion of cysts by contaminated water supplies or food. Oral-anal type sexual transmission.

Symptoms:
Nausea, malaise, flatulence, weakness, weight loss, abdominal cramps and diarrhea.

The distinctive hydrogen sulfide odor can be detected in breath or stools.


DIAGNOSIS
STRING TEST:
Gelatin capsule packed with 140cm fine string is swallowed by the patient. One end of the string is taped to patient's cheek. The gelatin capsule dissolves in the stomach and the other end of the string enters the upper bowel. After a few hours, the string is drawn up from the mouth and tested for G. lamblia trophozoite forms.
CALLER
MICROBIAL PROFILE
DISEASE
CRYPTOSPORIDIOSIS
CAUSATIVE AGENT
Cryptosporidium parvum
HABITAT
LARGE INTESTINE OF MAMMALS.
GRAM REACTION
NONE. IT IS A PROTOZOAN.
Motion of Giardia lamblia
Leaf-like motility
TREATMENT
MORPHOLOGY
TYPE OF MICROORGANISM
PROTOZOA
COCCUS (APICAL COMPLEX)
Ibuprofen
Dear Dr. Ganteaume
-Beyonce Knowles-Carter
Houston, Texas
"I recently watched the news and heard about crypto-disease that is emerging here in Texas. As you know, I am new mother and I want a few questions answered.

What is this crypto-disease?
How can it be contracted?
What are it's normal symptoms?
Who is more at risk of catching this disease?"

Thanks!
NAME THAT DISEASE!!
What is the habitat of the Vibrio parahaemolyticus?

What is the causative agent of Cryptosporidiosis?

Name two treatments for mumps.

How can giardiasis be contracted?

Why are antibiotics NOT recommended for the treatment of E.coli?
SCENARIO
Director...........................Kristonnia Stubbs
Theme Music..................Danielle Dorsett
Production Manager........Kristonn Stubbs

Starring.................Danielle Dorsett
.................Danielle Ganteaume
................Cameron Newry
................Kristonn Stubbs
................Kristonnia Stubbs
Credits
Sources
www.microbewiki.kenyon.edu

www.cdc.gov

Case, Funke, Tortora. "Microbiology: An Introduction, Tenth Edition".

E. coli is most often found in meat, it is not limited to it.

The bacteria are also found in unpasteurized milk and apple cider.

Fruits and vegetables that grow close to the ground are at risk to E. coli contamination

Once someone has been infected, the infection can be passed from one person to another person by hand-to-mouth contact.
Full transcript