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
Yersinia pseudotuberculosis has a wide host range
T
small rodents, hare, birds, mammals
Yersinia pseudotuberculosis is not a zoonotic agent.
F
Yersinia enterocolitica can cause diarrhoea only in rodents.
F
rodent, hare, swine, catttle, horse, dog, dag, birds
Yersinia enterocolitica can cause septicaemia
T
Yersinia enterocolitica can cause lesions in the mesenteric lymph nodes.
T
gut, lymphoid patches, mesenterial lymph nodes
Yersinia enterocolitica can infect humans
T
Plague occurs in the United States
T
Only humans are susceptible to the agent of plague.
F
Yersinia pseudotuberculosis causes frequently clinical signs in rodents
T
Yersinia pseudotuberculosis can cause enteritis.
T
Yersinia enterocolitica can infect only swine.
F
swine, rodents, hare, dogs, cats, farm animals, birds
Yersinia enterocolitica can infect animals per os.
T
Yersinia enterocolitica is a zoonotic agent.
T
Yersinia pseudotuberculosis can infect rodents.
T
Yersinia pseudotuberculosis can colonize the gut
T
Yersinia pseudotuberculosis cause tuberculosis in wild living animals
F
Yersinia pseudotuberculosis can infect only rodents.
F
Animals can be infected with Yersinia pseudotuberculosis mainly per os
T
Starvation of wild living animals is a predisposing factor of yersiniosis
T
predisposing factors:
- wild living animals: starvation, cold
- farm animals:overcrowding, parasitosis, nutrition
Infection with Yersinia pseudotuberculosis is limited to the gut
F
Yersinia pseudotuberculosis can cause septicaemia in rodents and hares.
T
* small rodents, hare, birds, mammals
Yersinia pseudotuberculosis can cause focal inflammation and necrosis in the parenchymal organs.
T
Yersinia pseudotuberculosis can survive in the environment
T
good survival in the environment
Yersinia pseudotuberculosis can cause disease only in rodents
F
small rodents, hare, birds, mammals
Yersinia pseudotuberculosis usually appears in tropical regions.
F
Yersinia pseudotuberculosis generalizes in brown hares.
T
Yersinia enterocolitica does not infect humans
F
The agent of yersiniosis cannot be cultured, PCR is the only way of its detection.
F
antibiotics
Yersiniosis is a zoonosis
T
Yersiniosis of rodents can be caused by Yersinia pseudotuberculosis
T
Carrier animals shed the agent of yersiniosis in the faces
T
Yersinia pseudotuberculosis can cause severe pleuropneumonia in rodents
F
Yersinia pseudotuberculosis can cause disease in hares
T
Infection caused by Yersinia pseudotuberculosis is always limited to the gut
F
Primary replication sites of Y. enterocolitica are the tonsils and lymphoid tissue of gut
T
infectio Po, tonsils, gut, lymphoid patches, mesenterical LN
Y. enterocolitica has a narrow host range
F
chinchilla, hare, swine, ruminant
Y. enterocolitica can be treated with tetracyclines
T
* broad spectrum antibiotics
Swine is an important host of Y. enterocolitica
T
chinchilla, hare, swine, ruminant
Chronic lesions caused by Y. enterocolitica resemble the lesions of tuberculosis
F
Hare and chinchilla are most susceptible to Y. enterocolitica.
F
Rodentiosis is caused by Y. pseudotuberculosis.
T
Y. pseudotuberculosis is relatively resistant and replicates in the environment
T
Arthritis can occur in the chronic form of the Y. pseudotuberculosis
T
Lesions are most often seen in the small intestines in case of Y. pseudotuberculosis
F
large intestine
Y. pseudotuberculosis is normally present in rodents.
F
Y. pseudotuberculosis sporadically causes abortion in cattle.
T
Y. pseudotuberculosis can cause inflammatory necrosis lesions in rodent.
T
Disease caused by Y. pseudotuberculosis is common in rodents and hares
T