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campylobacter (gram negative bacilli)

Campylobacter

Members of compylobacter are curved, spiral or S shaped with single flagellum similar to Vibrios.

They are microaerophilic (need O2 in very low concentration) 

Cause both intestinal and extra intestinal disease.

Source and Mode of Transmission

1. Ingestion of contaminated food.

2. Feco- oral route through direct contact

3. Contaminated water supply 

Pathogenesis


Toxins (exotoxins and exotoxins) of compylobacter cause both intestinal and extra intestinal diseases.

C. jejuni cause acute gastroenteritis

(Food poisioning)

Clinical symptoms

Fever

Diarrhea (without bloody stool)

Nausea and vomiting

Gastrointestinal disturbances 

Bacteremia

Laboratory Diagnosis

Specimen collection

Stool sample 

Direct microscopic examination

Cultural characteristics and culture

Aerobic and facultative anaerobes growing simple media at optimum temperature of 37 degree celcius, media blood agar medium with antibiotics.


Filteration

Due to small size, it can pass through bacteriologic filters.

Treatment and Prevention

Fluid and electrolyte used in case of diarrhoea.

In severe case, antibiotis should administered.

Ciprofloxacin is effective antibiotic.

Prevention

Through coocking of food especially, poultry and pasteurisation of milk and milk products is essential prevent of compylobacteriosis.

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