L26-27 Rickettsia, Chlamydia & Coxiella

Question 1

Choose the incorrect statement

A. Swine dysentery is caused by Brachyspira hyodysentriae
B. The bacteria mainly causes lesions in the duodenum and ileum
C. This disease affects young animals
D. Asymptomatic carriers are involved in the transmission of the disease

Answer 1

B. The bacteria mainly causes lesions in the duodenum and ileum

Question 2

Choose the incorrect statement

A. Lyme disease is caused by Borrelia burgdorferri
B. Lyme disease is an arthropod borne disease
C. Antigenic variation in outer surface proteins of this bacteria is a major virulence factor
D. The disease is confirmed if antibodies are detected in the patient

Answer 2

D. The disease is confirmed if antibodies are detected in the patient

Question 3

Member if the genus Rickettsia colonized:

A. Salivary epithelium
B. Vascular endothelium
C. Leucocytes
D. Erythrocytes

Answer 3

B. Vascular endothelium

Ehrlicia - leucocytes mainly
Anaplasma marginali - colonizes the erythrocytes
Chlamidia - Salivary epithelium

Question 4

Ruminant anaplasmosis is caused by:

A. Anaplasma phagocytophilium
B. Anaplasma marginale
C. Anaplasma platys
D. Anaplasma centrale

Answer 4

B. Anaplasma marginale

Question 5

Which of the following is incorrect regarding Q fever ?

A. Caused by Coxiella burnetti
B. Zoonitic disease
C. May cause abortion in cattle
D. Can be transmitted by arthropods

Answer 5

D. Can be transmitted by arthropods