Save
Busy. Please wait.
or

show password
Forgot Password?

Don't have an account?  Sign up 
or

Username is available taken
show password

why


Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account.
We do not share your email address with others. It is only used to allow you to reset your password. For details read our Privacy Policy and Terms of Service.


Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.
focusNode
Didn't know it?
click below
 
Knew it?
click below
Don't know
Remaining cards (0)
Know
0:00
share
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how

Campylobacter

Campylobacter and other curved rods

QuestionAnswer
What is the morphology of Campylobacter? Curved(spirals or “seagulls”) gram negative bacilli.
What are the growth requirements for Campylobacter? Slow growing, fastidious and require a microaerophilic atmosphere.
What are the reservoirs for Campylobacter? Inhabits the gastrointestinal tract of poultry, pigs, dog, cats and sheep.
Which species within the genus of Campylobacter is most responsible for disease in humans? Campylobacter jejuni
Campylobacter grows best at the body temperature of what animal? at the body temperature of a bird (42 degrees C), and seems to be well adapted to birds, who carry it without becoming ill.
What specimen would be required for Campylobacter? from feces or blood
What are the selective media for Campylobacter? Modified Skirrow Campy-blood agar plate CCDA Campy-CVA (all with antibiotics)
What are the incubation requirements for Campylobacter? Incubation of media at 42° under microaerophilic conditions. Requires 3 to 5% oxygen and 2 to 10% carbon dioxide for optimal growth conditions.Incubate 72 hours
How might molecular essays be useful? in direct detection from diarrhea samples.
Most Campylobacter infections are self-limiting and are not treated with antibiotics.
What extraintestinal infections may occur in immunocompromised hosts. (meningitis and arthritis)
C. Jejuni causes what infection in humans? diarrhea, which may be watery or sticky and can contain blood (usually occult) and fecal leukocytes (white cells).
What should be observed on selective media? suspicious colonies-grayish, slightly mucoid, tailing effect along the streakline
How would you id jejuni? oxidase-pos catalase-pos gram stain-curved neg rods ( faintly staining- seagull wings) p. 418 susceptibility to naladixic acid growth 25
Is C. jejuni a reportable disease in Virginia? Yes
How is Campylobacter spread among chickens? Campylobacter can be easily spread from bird to bird through a common water source or through contact with infected feces. When an infected bird is slaughtered, Campylobacter can be transferred from the intestines to the meat.
How does water aid in the transmission of Campylobacter Jejuni? Surface water and mountain streams can become contaminated from infected feces from cows or wild birds.
What is one of the most common bacterial causes of diarrheal illness in the United States. Campylobacter Jejuni. Virtually all cases occur as isolated, sporadic events, not as a part of large outbreaks.
Why does Campylobacteriosis occur much more frequently in the summer months than in the winter? Who knows? It just does.
Which segment of the population is more affected by Campylobacter? The organism is isolated from infants and young adults more frequently.
What is the recommended treatment for Campylobacter infection? Virtually all persons infected with Campylobacter will recover without any specific treatment.
Are there after effects associated with campylobacter infection? Yes. Rarely some people may have arthritis following campylobacteriosis; others may develop Guillain-Barré syndrome
What is the gram morphology of H. pylori? Curved microaerophilic gram neg rods
What was H. pylori previously called? H.pylori -was called Campylobacter pylori
What are some of the manifestations of H. pylori? -colonizes the human gastric mucosa-untreated infections last the lifetime of the host.-carriers may be at increaed risk of developing gastritis,peptic ulcers and gastric carcinoma.
What specimen would be used for H. pylori examination? Collect tissue biopsy
What procedure would you use to id H. pylori in the lab? Selective media ( similar to Campy) @35-37 C Slow grower (4-7 days) Gram stain similar ID methods as Campy (table 36-3) oxidase pos, catalase pos, urease pos
What other detection methods are available for H. pylori? Direct detection (most widely used): urease kit, urea breath test, EIA, monoclonal ab.Serodiagnosis is not as reliable
What is the recommended course for H. pylori infection? Treatment usually involves a combination of antibiotics, acid suppressors, and stomach protectors (Pepto-Bismol)
What are the other Heliobacter species? H.cinaedi and fennelliae causes, proctitis enteritis and sepsis in homosexual men.H.cinaedi causes sepsis, cellulitis and meningitis in immunocompromised patients.
How would the other Heliobacter species be diagnosed? Collect stool or blood samples Use selective media, slow grower Perform gram stainID methods similar to Campylobacter
Describe Arcobacter Curved, fastidious gram neg rods Associated with persistent watery diarrhea Causes gastroenteritisSources: pigs, humans, waterGrowth @25C
What is Skirrow agar? Skirrow's medium is blood agar infused with a cocktail of antibiotics: vancomycin, polymixin-B and trimethoprim under microaerophilic conditions at 42 °C
Created by: Mgoodall
 

 



Voices

Use these flashcards to help memorize information. Look at the large card and try to recall what is on the other side. Then click the card to flip it. If you knew the answer, click the green Know box. Otherwise, click the red Don't know box.

When you've placed seven or more cards in the Don't know box, click "retry" to try those cards again.

If you've accidentally put the card in the wrong box, just click on the card to take it out of the box.

You can also use your keyboard to move the cards as follows:

If you are logged in to your account, this website will remember which cards you know and don't know so that they are in the same box the next time you log in.

When you need a break, try one of the other activities listed below the flashcards like Matching, Snowman, or Hungry Bug. Although it may feel like you're playing a game, your brain is still making more connections with the information to help you out.

To see how well you know the information, try the Quiz or Test activity.

Pass complete!

"Know" box contains:
Time elapsed:
Retries:
restart all cards