SPIROCHAETES

Question 1

Members of the Spirochaetes are motile by means of endoflagella which are located within?

Answer 1

Periplasm

Question 2

Name three Families of Order Spirochaetales with veterinary significance

Answer 2

Leptospiraceae
Spirochaetaceae
Brachyspiraceae

Question 3

Name 2 genera of Spirochaetaceae with veterinary significance

Answer 3

Borrelia
Treponema

Question 4

Members of this species are motile helical bacteria with hook-shaped ends

Answer 4

Leptospires

Question 5

Leptospira spp are found in which environment

Answer 5

Aquatic environments

Question 6

Leptospira are shed in?

Answer 6

Urine

Question 7

Leptospira serovar of cattle and sheep

Answer 7

Hardjo

Question 8

Leptospira serovar of dogs

Answer 8

Canicola

Question 9

These species are longer and wider than other spirochaetes

Answer 9

Borrelia spp

Question 10

These spirochaetes possess linear and circular plasmids

Answer 10

Borrelia species

Question 11

Which 2 nucleotides do Borrelia spp genomic DNA have low content?

Answer 11

Guanine
Cytosine

Question 12

Vector of Borrelia burgdorferi

Answer 12

Ixodes species

Question 13

Clinical condition caused by Borrelia burgdorferi

Answer 13

Lyme disease

Question 14

Vector of Borrelia anserina

Answer 14

Argas species

Question 15

Vector of Borrelia coriaceae

Answer 15

Ornithodorous species

Question 16

Causative agent of Avian spirochaetosis

Answer 16

Borrelia anserina

Question 17

Which Borrelia spp is associated with epizootic bovine abortion in USA?

Answer 17

Borrelia coriaceae

Question 18

Name the 2 nonpathogenic Brachyspires isolated from pigs

Answer 18

Brachyspira innocens
Brachyspira murdochii

Question 19

Which brachyspires has been associated with intestinal spirochaetosis in chickens and pigs?

Answer 19

Brachyspira intermedia

Question 20

Pathogenic Brachyspira species are found in the _________ of both clinically affected and normal pigs.

Answer 20

Intestinal tract

Question 21

Which of the five species of brachyspires are shed by the carrier pigs and how long can it be a source of infection for healthy pigs?

Answer 21

Brachyspira hyodysenteriae, 3 months

Question 22

A spirochaetales associated with vent disease in rabbits.

Answer 22

Treponema paraluiscuniculi

Question 23

How many spirals can Brachyspira and Treponema species have?

Answer 23

6-14

Question 24

Clinical condition caused by Brachyspira hyodysenteriae

Answer 24

Swine dysentery

Question 25

Clinical condition caused by Brachyspira pilosicoli

Answer 25

Intestinal spirochaetosis of pigs, dogs, birds and humans

Question 26

Implicated in porcine spirochaetal colitis

Answer 26

Brachyspira intermedia

Question 27

Which of the Brachyspira species is positive for Indole spot test?

Answer 27

Brachyspira hyodysenteriae

Question 28

Which of the Brachyspira species is positive for Hippurate hydrolysis?

Answer 28

Brachyspira pilosicoli