MT4 - YERSINIA (W) Flashcards by Crystal Moonstone

Yersinia enterocolitica does not infect humans

small rodents, hare, birds, mamals

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Lesions caused by Yersinia pseudotuberculosis are always limited to the gut

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Yersinia pseudotuberculosis can cause a generalised disease in hares

small rodents, hare, birds, mamals

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Rodents and hares are susceptible to Yersinia pseudotuberculosis

small rodents, hare, birds, mamals

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Yersinia pseudotuberculosis can cause abortion in cattle

diarrhoea, mastitis, abortion (cattle)

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Focal inflammation and necrosis are postmortem lesions of the disease caused by Yersinia pseudotuberculosis

Abortion:
foetus: focal inflammation, necrosis
*-foetal membranes: *fibrinous-necrotic inflammation

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Only rodents are susceptible to Yersinia pseudotuberculosis

small rodents, hare, birds, mamals

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Some Yersinia enterocolitica strains have cross reaction with brucellae.

* O9: cross reaction with Brucella-species

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Yersinia pestis is endemic in certain countries of Europe

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Yersinia enterocolitica can infect pigs.

swine, rodents, hare, dogs, cats, farm animals, birds

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Starvation and long, cold winter can predispose wild living animals to disease caused by Yersinia pseudotuberculosis

predisposing factors:
- wild living animals: starvation, cold
- farm animals: overcrowding, parasitosis, nutrition

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Yersinia pseudotuberculosis mainly causes respiratory clinical signs in cattle:

diarrhoea, mastitis, abortion (cattle)

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yersinia pestis has been eradicated from earth:

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yersinia enterocolitica generally infects hosts per os

infection:
- arthropods: flea (tick, louse)
- inhalation (humans)
- wound

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fruits and vegetables can be the source of human infection by yersinia

during cultivation, harvest, processing, transportation, or storage. Improper handling or inadequate washing of fruits and vegetables can lead to the transmission of Yersinia enterocolitica

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the agent of the plague is transmitted by fleas:

infection:
- arthropods: flea (tick, louse)
- inhalation (humans)
- wounds

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yersinia pseudotuberculosis is a zoonotic agent

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diseases caused by yersinia pseudotuberculosis occur only in tropical areas

gut, soil, water, food, propagation: 2-43C

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Diarrhoea is a common clinical sign of yersiniosis in pig

diarrhoea, weight loss, weakness (rodents, hare, swine)

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Yersinia pseudotuberculosis can cause diarrhoea

in all : rodent, hare, swine, cattle, dog, cat, birds etc

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Carrier animals shed the agent of yersiniosis in the faeces.

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Yersinia pestis has been eradicated from Earth

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Plague is caused by Yersinia pestis.

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The Earth is free from plague.

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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.

Farm animals are regularly vaccinated to prevent infection caused by Yersinia pseudotuberculosis

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.

Yersinia pseudotuberculosis has a wide host range

T | small rodents, hare, birds, mammals

Yersinia pseudotuberculosis is not a zoonotic agent.

Yersinia enterocolitica can cause diarrhoea only in rodents.

F | rodent, hare, swine, catttle, horse, dog, dag, birds

Yersinia enterocolitica can cause septicaemia

Yersinia enterocolitica can cause lesions in the mesenteric lymph nodes.

T | gut, lymphoid patches, mesenterial lymph nodes

Yersinia enterocolitica can infect humans

Plague occurs in the United States

Only humans are susceptible to the agent of plague.

Yersinia pseudotuberculosis causes frequently clinical signs in rodents

Yersinia pseudotuberculosis can cause enteritis.

Yersinia enterocolitica can infect only swine.

F | swine, rodents, hare, dogs, cats, farm animals, birds

Yersinia enterocolitica can infect animals per os.

Yersinia enterocolitica is a zoonotic agent.

Yersinia pseudotuberculosis can infect rodents.

Yersinia pseudotuberculosis can colonize the gut

Yersinia pseudotuberculosis cause tuberculosis in wild living animals

Yersinia pseudotuberculosis can infect only rodents.

Animals can be infected with Yersinia pseudotuberculosis mainly per os

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

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.

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.

Yersinia pseudotuberculosis generalizes in brown hares.

Yersinia enterocolitica does not infect humans

The agent of yersiniosis cannot be cultured, PCR is the only way of its detection.

Yersiniosis is a zoonosis

Yersiniosis of rodents can be caused by Yersinia pseudotuberculosis

Carrier animals shed the agent of yersiniosis in the faces

Yersinia pseudotuberculosis can cause severe pleuropneumonia in rodents

Yersinia pseudotuberculosis can cause disease in hares

Infection caused by Yersinia pseudotuberculosis is always limited to the gut

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

Hare and chinchilla are most susceptible to Y. enterocolitica.

F | primary host- pig

Rodentiosis is caused by Y. pseudotuberculosis.

Y. pseudotuberculosis is relatively resistant and replicates in the environment

T | gut+ enviro - propagates in 2-43 degrees

Arthritis can occur in the chronic form of the Y. pseudotuberculosis

Lesions are most often seen in the small intestines in case of Y. pseudotuberculosis

F | large intestine

Y. pseudotuberculosis is normally present in rodents.

Y. pseudotuberculosis sporadically causes abortion in cattle.

Y. pseudotuberculosis can cause inflammatory necrosis lesions in rodent.

Disease caused by Y. pseudotuberculosis is common in rodents and hares