Past papers 5 Flashcards
What is the cause of glanders?
Pseudomonas mallei
Bronhamella is a subgenus of:
Moraxella
What is the most common condition caused by Brucella?
Abortion
What is the growth of Brucella?
Anaerobic
Toxins of Bordetella, what is the most important one?
Heat labile dermonecrotoxin and haemagglutin
What 2 Bordetella species are most pathogenic for animals?
B. bronchiseptica and B. avium
What type of capsule does Bordetella have?
Outer membrane pseudo-capsule that is lost by passage
What variant of F. tularensis is found in Israeli?
Var. palaeartica
What bacteria uses McCoy agar
Francisella tularensis
For which bacteria do you use brilliant green agar?
Enterobacteriaceae
Neurotoxins of E. coli cause what?
Enterotoxaemia of pigs or oedema disease
Where are endotoxins of e. coli found?
O antigens that form part of cell wall
What disease is caused by Serratia?
Non pathogen but associated with inflammation
Which bacteria grow on sodium-selenite lactose media (5)
Lactococcus
Weissella
Leuconostoc
ENterococcus
Fructobacillus
For which bacteria do you use Rappaport-Varrition media:
Salmonella
Deoxycholate citrate agar is used for
Enteric bacilli: salmonella and shigella
Ed. tarda cause disease most often in:
fish
K. pneumoniae subsp. pneumoniae cause what in cattle?
mastitis
Most important species of enterobacter:
Eb. cloaca and Eb. aerogenes are the most important
Genus Erwina is most similar to
enterobacter agglomerans
Proteus causes what in horse?
endometritis and urogenital infections
Morganella morganii is most often found in
faeces
Does providencia swarm?
Yes
Genus Erwina produces
a yellow pigment on culture
for which bacteria can you use SS and MacConkey agar for isolation?
Shigella
For which bacteria do you use Wilson blair bismuth sulphite agar?
Salmonella
Red mouth disease is caused by
Y. ruckeri
Which bacteria causes pseudotuberculosis?
Mycobacterium pseudotuberculosis
What sort of growth do you get from P. multocida on McConkey agar?
Negative growth
Which Pasteurella species are pathogenic?
P multocida and P gallinarum
How are aeromonas classified?
morphologically (according to motility)
Which species causes furunculosis of salmonids?
Aeromonas salmonicida subsp. salmonicida
Treponema are:
anaerobic
T. pallidum subsp. pallidum causes:
syphilis in man and monkeys
B. theileri causes:
bovine and equine borreliosis
Leptospirosa require
aerobic conditions
What causes canine leptospirosa?
Leptospirosa interrogans subsp. canicola
What campylobacter belong to Wolinella group:
C. cinaedi, C. fennelliae, C. pylori, Wolinella succinogens
Pathogenic strains of campylobacter:
C. jejuni and C. coli
The most important equine disease caused by Staphylococcus is:
Botrymycosis
Morphology of Staphylococcus:
Gram-positive cocci that form grape-like clusters
For which bacteria do you use Yolk-tellurite-glycine-pyruvate agar?
Staphylococcus (micrococcaceae)
What bacteria produce white to yellow, large colonies with standard incubation?
Staphylococcus
Haemolytic toxins of Staphylococcus - which ones produce complete haemolysis?
alpha-lysin, gamma-lysin delta-lysin
Coagulate positive strains are more or less virulent?
more virulent
Most common cause of Streptococcus infection in foals:
Str. zooepidemicus
Rhodococcus equi is responsible for:
equine foal pneumonia
Which species are most often affected by Listeriosis?
Ruminants (sheep and cattle)
What does E. rhusiopathie cause?
Erysipelas in pigs
What are the pathologic species of Nocardia?
N. asteroides
N. brasiliensis
N. caviae
What causes dermatitis?
Dermatophiles congolensis
Under what conditions does B. anthracis sporulate?
aerobic
Acute and peracute forms of B. anthracis occurs in:
Bovine and sheep
Factor II is:
protective factor
B. anthracis secrete:
tri-partite exotoxin (pleiotrophic effects on host)
Infectious necrotic hepatitis is caused by:
C. novyi
What are sporulation toxins and when are they formed?
Formed intracellularly and released at time of sporulation (e.g. C. perfringens)
Which species are most susceptible to C. perfringens?
Sheep and goat
How many toxins are there for C. botulinum?
A –> G
How do animals develop botulism?
Ingestion of preformed toxin
Adsorption of toxin from wound contamination
(Clostridium botulinum)
Lowenstein-Jensen agar is used for:
Mycobacteria
M. tuberculosis and M. avium form:
Eugonic colonies
Photochromagen strains form:
no pigment in darkness
Chlamydia and Rickettsia are:
obligate cell parasites
Coxiella burnetti can be serologically identified by
complement fixation
agglutination
Larvae and nymphs transmit Coxiella burnetti:
to small vertebrate infections
What is the causative agent for psittacosis and ornithosis?
Chl. psittaci
What stain technique is used to identify Chlamydia?
Stamp and stableforth (modified Ziehl-Neelsen)
Culture media for Chlamydia:
embryonated hen eggs (egg culture)
cell/tissue culture
Culture media for mycoplasma
Enriched, 20% blood serum (human or horse)
Mycoplasma meleagridis cause:
Mycoplasma of Turkeys