Gram Negativ Organisms Flashcards
Where is enterobacter is normally found?
Normal flora of the digestive system
What shape and gram is enterobacter?
G (-) rods
Is enterobacter anaerobic, facultative, or aerobic?
Facultative anaerobes
What does enterohenorrhagic e. Coli do?
Has fimbrae that attach to human intestines and produce a toxin that causes hemorrhagic colitis
What are three symptoms of hemorrhagic colitis?
Bleeding, diarrhea, hemolytic uremia syndrome
Where does enterohenorrhagic E. coli come from? 3
Meat, unpasteurized juices, alfalfa sprouts
What is enterotoxigenic E. coli and what does it produce? 4
Enterotoxin that produces water diarrhea, vomiting, fever, and dehydration
What causes travelers diarrhea?
Enterotoxigenic E. coli
What are two diseases caused by salmonella?
Salmonellosis and salmonella gastroenteritis
What are the two major infectious groups of salmonella?
Septic and enteric
What is septic salmonella? 4
Invasive, high mortality rate, caused by s. Typhumurium/Dublin
What is enteric salmonellosis?
Effect intestinal tract, causing diarrhea and dehydration
What are antibiotics not very effective against and treatment consists if oral rehydration?
Salmonella
What are 5 ways to get salmonella?
Poultry, eggs, reptiles, vegtables, peanut butter
What does salmonella typhi cause?
Typhoid fever
How would you treat salmonella typhi?
Antibiotics
What are 5 symptoms of salmonella?
104 fever, ulcerative liesions of lymphoid tissues lining small intestine, abdominal tenderness, diarrhea, vomiting
What is klebsiella? Gram and shape
G(-) rod
What are three things k. Pneumoniae can cause?
Pneumonia, mastitis, septicemia
What does shigella flexneri cause?
Severe intestinal infections in primates
Where can you find serratia?
Soil
What are three symptoms of serratia?
Pneumonia, septicemia, mastitis
What shape and gram is pseudomonas?
G(-) rod
Is pseudomonas aerobic, anaerobic, or facultative?
Aerobic
Where is pseudomonas found?
Water and soil
Why is pseudomonas aeriginosa hard to get rid of?
Can use anything for its carbon source
What is pseudomonas dermatitis?
Self limiting rash that lasts two weeks
Where is pseudomonas dermatitis often found?
Swimming pools
What is Otis externa?
Painful chronic external ear canal infection
What causes Otis externa?
Pseudomonas aeriginosa
Who can pseudomonas aeriginosa seriously effect?
Burn patients
What has some treatment effect against pseudomonas aeriginosa?
Fluroquinolones
Is brucella positive or negative rod or cocci?
Negative rod
Is brucella motile or not?
No
How does brucella abortus travel? 2
Via the blood stream and lymphatic system