Campylobacter

Question 1

General characteristics and morphology. (gram stain and motility)

Answer 1

-Gram negative curved rods —Often attached in pairs giving a “seagull” appearance
-Motile by polar flagella; darting motility in corkscrew fashion (facilitates penetration and coloniaztion of mucosal environment)

Question 2

Most pathogenic campyobacter species?

Answer 2

C.jejuni

Question 3

Source and transmission of C.jejuni?

Answer 3

• C. jejuni -commonly associated with poultry,
-naturally colonises the digestive tract of many bird species
• Transmission –Raw or undercooked food products
-Through direct contact with infected animals

Question 4

Specimen used in diagnosis?

Answer 4

Blood
Stool

Question 5

Which media is used for C.jejuni?

Answer 5

Skirrow’s medium

Question 6

Biochemical tests?

Answer 6

Oxidase positive.

Question 7

Antibiotics against campylobacter?

Answer 7

Erythromycin
Ciprofloxacin