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Campy/Helicobacter
MedMicro 2006 UTHSCmed
| Question | Answer |
|---|---|
| Camp and Helico all | bacillus(curved, Microaerophilic, Oxidase +, Catalase +, NON-fermenting |
| Campylobacter jejuni shape | Bacillus (curved) |
| Campylobacter jejuni aerobicity | Microaerophilic |
| Campylobacter jejuni Oxidase +/- ? | Oxidase + |
| Campylobacter jejuni Catatlase +/- ? | Catalase + |
| Campylobacter jejuni fermeter? | Non-fermenting |
| Campylobacter jejuni motility | single flagellum |
| Campylobacter jejuni Temperature | 32-42 C |
| Campylobacter jejuni virulence factors | adhesion, enterotoxin |
| Campylobacter jejuni pathophysiology | consumption of bad water or food; usually self-limiting |
| Campylobacter jejuni reservoir | birds and mammals |
| Campylobacter jejuni diseases | acute gastroenteritis/dysentery; guillan-barre syndrome (rare autoimmune peripheral demyeleniaton |
| Campylobacter jejuni Specimen | stool |
| Campylobacter jejuni lab diagnosis | Campy selective blood agar, 5% O2, thermophile, fastidious, slow |
| Campylobacter jejuni treatment | Ciprofloxacin (adults) and erythromycin (kids)--only in severe disease or to eliminate carrier state |
| Campylobacter jejuni prevention/control | Properly prepared food, pasteurization, sanitary water |
| Campylobacter jejuni NOTES: | Resistant to many antibiotics, similiar to Vibrios except non-halophilic |
| Campylobacter jejuni NOTES: | Peaks in Warm months, low stomack acid is risk |
| C. fetus Shape | Bacillus (curved) |
| C. fetus Aerobicity | Micoraerophilic |
| C. fetus Oxidase +/- ? | Oxidase + |
| C. fetus Catalase +/- ? | Catalase + |
| C. fetus fermeter? | NON-fermenting |
| C. fetus motility | single flagellum |
| C. fetus temperature | 25-37 C |
| C. fetus virulence factors | capsule-like s protein |
| C. fetus pathophysiology | from GI tract to bloodstream |
| C. fetus reservoir | cattle and sheep |
| C. fetus Diseases | Systemic bacteremia |
| C. fetus specimen | blood |
| C. fetus NOTES: | infections are rare but often fatal; found in immunocompromised |
| Helicobacter pylori Shape | Bacillus (curved) |
| Helicobacter pylori Aerobicity | Microaerophilic |
| Helicobacter pylori Oxidase +/- ? | Oxidase + |
| Helicobacter pylori Catalase +/- ? | Catalse + |
| Helicobacter pylori fermeter | NON-fermenting |
| Helicobacter pylori motility | 5-6 polar flagella |
| Helicobacter pylori temperature | 35-42 C |
| Helicobacter pylori virulence factors | Urease, adhesion, LPS, micinase, phospholipase, VacA, acid inhibitory protein |
| Helicobacter pylori pathophysiology | Ingestion, invades mucus over gastric epithelium; Type I = vacuolating cytotoxin (VacA), duodenum |
| Helicobacter pylori Reservoir | humans |
| Helicobacter pylori Diseases | gastric and duodenal ulcers, gastritis; gstric adenocarcinoma and MALT B-cell lymphomas |
| Helicobacter pylori specimen | gastric or duodenal biopsy, breath test for urea |
| Helicobacter pylori lab diagnosis | blood antibodies, difficult to culture |
| Helicobacter pylori teatment | Metronidazole + tetracycline or amoxicillin; Pepto Bismol + omeprazole (H+ pump inhibitor) |
| Helicobacter pylori prevention/control | vaccine is being developed |
| Helicobacter pylori NOTES: | Group 1 carcinogen(cigarettes), Infiltration of lamina propria w/ PMN's |