MT4 - YERSINIA (W) Flashcards
Yersinia enterocolitica does not infect humans
F
small rodents, hare, birds, mamals
Lesions caused by Yersinia pseudotuberculosis are always limited to the gut
F
Yersinia pseudotuberculosis can cause a generalised disease in hares
T
small rodents, hare, birds, mamals
Rodents and hares are susceptible to Yersinia pseudotuberculosis
T
small rodents, hare, birds, mamals
Yersinia pseudotuberculosis can cause abortion in cattle
T
diarrhoea, mastitis, abortion (cattle)
Focal inflammation and necrosis are postmortem lesions of the disease caused by Yersinia pseudotuberculosis
T
Abortion:
foetus: focal inflammation, necrosis
*-foetal membranes: *fibrinous-necrotic inflammation
Only rodents are susceptible to Yersinia pseudotuberculosis
F
small rodents, hare, birds, mamals
Some Yersinia enterocolitica strains have cross reaction with brucellae.
T
* O9: cross reaction with Brucella-species
Yersinia pestis is endemic in certain countries of Europe
F
asia + western USA
Yersinia enterocolitica can infect pigs.
T
swine, rodents, hare, dogs, cats, farm animals, birds
Starvation and long, cold winter can predispose wild living animals to disease caused by Yersinia pseudotuberculosis
T
predisposing factors:
- wild living animals: starvation, cold
- farm animals: overcrowding, parasitosis, nutrition
Yersinia pseudotuberculosis mainly causes respiratory clinical signs in cattle:
F
diarrhoea, mastitis, abortion (cattle)
yersinia pestis has been eradicated from earth:
F
yersinia enterocolitica generally infects hosts per os
T
infection:
- arthropods: flea (tick, louse)
- inhalation (humans)
- wound
fruits and vegetables can be the source of human infection by yersinia
T
during cultivation, harvest, processing, transportation, or storage. Improper handling or inadequate washing of fruits and vegetables can lead to the transmission of Yersinia enterocolitica
the agent of the plague is transmitted by fleas:
T
infection:
- arthropods: flea (tick, louse)
- inhalation (humans)
- wounds
yersinia pseudotuberculosis is a zoonotic agent
T
diseases caused by yersinia pseudotuberculosis occur only in tropical areas
F
worldwide
Diarrhoea is a common clinical sign of yersiniosis in pig
T
diarrhoea, weight loss, weakness (rodents, hare, swine)
Yersinia pseudotuberculosis can cause diarrhoea
T
in all : rodent, hare, swine, cattle, dog, cat, birds etc
Carrier animals shed the agent of yersiniosis in the faeces.
T
Yersinia pestis has been eradicated from Earth
F
Plague is caused by Yersinia pestis.
T
The Earth is free from plague.
F
Only rats are susceptible to plague.
F
cats, dogs, rabbits ,humans
Fleas can transmit plague.
T
infection:
- arthropods: flea (tick, louse)
- inhalation (humans)
- wound
Yersinia pseudotuberculosis can infect brown hares
T
cats, dogs, rabbits, humans
Yersinia pseudotuberculosis can cause septicaemia is rodents.
T
Farm animals are regularly vaccinated to prevent infection caused by Yersinia
pseudotuberculosis
F
Yersinia pseudotuberculosis can infect humans.
T
small rodents, hare, birds, mammals
Plague is caused by Yersinia pseudotuberculosis
F
Y. pestis
Arthropods are involved in spreading of plague.
T