Lesson 4a, 4b, 4c

Question 1

Ingestion of feed contaminated with L. monocytogenes result to

Answer 1

septicemia, encephalitis, abortion

Question 2

L. monocytogenes infection in pregnant animals results to?

Answer 2

transplacental transmission

Question 3

main route of neural listerioses

Answer 3

migration in cranial nerves via dental pulp

Question 4

Another way of L. monocytogenes to survive within the hosts cell

Answer 4

cell autophagy

Question 5

present as encephalitis, abortion, septicaemia or endophthalmitis in ruminants

Answer 5

bovine listeriosis

Question 6

dullness, circling and tilting of the head, unilateral facial paralysis

Answer 6

neural listeriosis

Question 7

treatment of listeriosis

Answer 7

ampicillin, amoxicillin, or in combination with aminoglycosides

Question 8

Occur singly, in palisades of parallel cells and in angular clusters resembling Chinese characters in stained smears

Answer 8

corynebacterium species

Question 9

corynebacterium bovis pathogenesis in cattle and habitat

Answer 9

subclinical mastitis - teat cistern

Question 10

C. diptheriae effects on horses

Answer 10

wound infection

Question 11

they cause abscesses, foci in liver, lungs and lymph nodes in lab rodents

Answer 11

Corynebacteriumm kutscheri

Question 12

Non nitrate reducing C. pseudotuberculosis effect on sheep and goats

Answer 12

caseous lymphadenitis

Question 13

nitrate reducing biotype of C. pseudotuberculosis in horses and cattle

Answer 13

ulcerative lymphagitis, abscess

Question 14

C. renale effect on cattle

Answer 14

cystitis, pyelonephritis

Question 15

C. renale effect on sheep and goats

Answer 15

ulcerative balanoposthitis

Question 16

C. pilosum effect on cattle

Answer 16

cystitis, pyelonephritis

Question 17

C. cystidis effect on cattle

Answer 17

severe cystitis, pyelonephritis

Question 18

C. ulcerans effect on cattle

Answer 18

mastitis

Question 19

C. ulcerans effect on cats

Answer 19

upper respiratory tract infection

Question 20

C. ulcerans cause in humans

Answer 20

diptheria

Question 21

Corynebacterium are opportunistic pathogens and pyogenic except for?

Answer 21

C. bovis

Question 22

a facultative intracellular pathogen capable of surviving and replicating in phagocytes whose virulence is linked to its cell wall lipid and to the production of an exotoxin, phospholipase D (PLD) that enhances its survival and multiplication in the host

Answer 22

Corynebacterium pseudotuberculosis

Question 23

diptheria toxin from these Corynebacteria species present in raw milk cows may implicate public health

Answer 23

Corynebacterium ulcerans, Corynebacterium pseudotuberculosis

Question 24

chronic supporative conditions, encapsulated abscess formation which have an onion ring appearance in cross-section, enlargement of lymph nodes thus results in condemnation of carcasses and devaluation of hides

Answer 24

caseous lymphadenitis

Question 25

also called pizzle rot common in Merino sheep and Angora goats

Answer 25

Ulcerative balanoposthitis

Question 26

characterized by ulceration around the preputial orifice (or vulva in ewes), with a brownish crust developing over the lesion

Answer 26

pizzle rot

Question 27

form actinomycetales

Answer 27

Rhodococcus equi, Nocardia sp., Mycobacterium sp.

Question 28

Formerly named Corynebacterium equi

Answer 28

rhodococcus equi

Question 29

Clinical conditions associated with Rhodococcus equi in humans

Answer 29

pneumonia

Question 30

Clinical conditions associated with Rhodococcus equi in cats

Answer 30

subcutaneous abscess, mediastinal granulomas

Question 31

Clinical conditions associated with Rhodococcus equi in pigs and cattle

Answer 31

mild cervical lymphadenopathy

Question 32

Clinical conditions associated with Rhodococcus equi in horses

Answer 32

superficial abcessation

Question 33

Oppurtunistic intracellular pathogen (foal under 6 months old)

Answer 33

Rhodococcus equi

Question 34

Clinical conditions associated with Rhodococcus equi in foals 1-4 mos old

Answer 34

Suppurative bronchopneumonia and pulmonary abscessation

Question 35

epidemiology of suppurative bronchopneumonia of foals

Answer 35

inhalation of contaminated dust or ingestion (sputum) of large numbers of R. equi

Question 36

it is the respiratory pathogen of foal under 6 mos old

Answer 36

rhodococcus equi

Question 37

these are environmental saprophytes

Answer 37

listeria species