PQS - entrance exam [7] Flashcards by Hege Osland

Myxomatosis virus is used as vector virus to produce bivalent vaccine protecting rabbits
against myxomatosis and rabbit haemorrhagic disease.

True

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In cattle pseudocowpox lesions are usually mild and transient

True

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The primary replication sites of foot and mouth disease are the lymph nodes

False

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The main host (reservoir) of foot and mouth disease virus is swine

False

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Pigs are infected with swine vesicular disease virus per os.

True

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The foot and mouth disease virus is very sensitive to acidic pH

True

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The African swine fever virus can be inactivated by 2%NaOH within 1 day

True

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Swine shed foot and mouth disease virus for a shorter time than cattle.

True

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Talfan disease occurs in any age groups

False

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Vaccines are available to control Gumboro disease

True

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Bursitis virus targets the premature B lymphocytes

True

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Genetic reassortments may cause significant antigenic changes in reovirus strains

True

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Birds serve as reservoirs for the Eastern equine encephalomyelitis virus

True

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Clinical signs of Gumboro disease can be seen in chickens younger than 8 days

False

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Losses due to rotavirus infection of young animals can be prevented by colostrum-feeding

True

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The natural reservoirs of the African horse sickness virus are mainly zebras

True

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Rotaviruses cause mainly respiratory signs in cattle

False

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Oedemas and haemorrhages are the most frequent lesions in African horse sickness

True

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Orthoreoviruses frequently cause tenosynovitis of horses

False

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Classical swine fever virus strains are classified into several serotypes

False

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Shedding of Classical swine fever virus starts 1 week after the infection

False

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HA protein of influenza viruses is responsible for the attachment to the cell

True

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The main host of in􀃖uenza is the swine

False

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Nairobi sheep disease causes haemorrhagic enteritis in the infected animals

True

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Classical swine fever infection during the first half of pregnancy results in the birth of immunotolerant piglets

True

Louping ill is seen in cattle in North America

False

Classical swine fever infection during the first half of pregnancy can lead to abortion

True

Bovine parain􀃖uenza-3 virus can cause interstitial pneumonia in calves

True

Bovine RS virus can cause life threatening disease in calves

True

Canine distemper virus can produce a generalised infection

True

Rinderpest is a common disease in Africa

False

In􀃖uenza causes high morbidity but low mortality in swine

True

The mortality of swine in􀃖uenza is high

False

Horse is susceptible to Hendra virus infection

True

Equine Viral Arteritis virus can infect by inhalation

True

Rabies virus can only be transmitted with bite

False

Drop of milk production is a clinical sign of ephemeral fever

True

Rabies virus is uniform without serotypes, genotypes etc

False

Infectious bronchitis virus causes tracheitis and pneumonia in chicken below 6 weeks of age

True

Retroviruses are generally host specific viruses

True

The antibodies against porcine respiratory coronavirus protect the pigs against TGE

True

By slaughtering seropositive animals, ovine pulmonary adenomatosis can be eradicated

False

Proventricular dilatation disease can occur in parrots

True

Interstitial pneumonia is the main postmortem lesion of visna

False

Borna disease occurs only in horses

False

Maedi and visna are caused by the same virus species.

True

Feline leukosis virus can cause horizontal and vertical infection

True

B-lymphocytes are the targets of enzootic bovine leukosis virus

True

Teeth grinding can be a clinical sign of pulpy kidney disease

True

Anaculture or anatoxin vaccines are used for the prevention of malignant oedema

True

Itching is a frequent sign of scrapie

True

Bradsot is caused by Clostridium chauvoei

False

Lamb dysentery is generally seen in weaned lambs

False

Anthrax is frequently a peracute disease in cattle

True

Bradsot occurs mainly in tropical and subtropical countries

False

Sheep are generally infected with the agent of swine erysipelas per os

False

The agent of erysipelas is carried by asymptomatic pigs in the tonsils

True

Vesicles are formed in the case of exudative dermatitis

True

Malignant oedema is caused by Clostridium chauvoei

False

The toxin of Clostridium botulinum has irreversible effect

True

Porcine streptococcosis is treated with penicillins

True

Rabbit staphylococcosis is mainly seen in weaned and young rabbits

True

False positive reactions of the tuberculin test in cattle can be caused by infection with certain Corynebacterium species.

True

The intradermal tuberculin test is negative if the increase of the thickness of the skin is 4.2 mm and there are no local lesions or signs

False

The tuberculin test in cattle can be false negative if only short time (1-3 weeks) has passed since the infection

True

The intradermal tuberculin test is negative if the increase of the thickness of the skin is 1.8 mm and there are no local lesions or signs

True

Clinical signs of caseous lymphadenitis can only be seen in sheep.

False

Caseous lymphadenitis of sheep is caused by Corynebacterium pseudotuberculosis

True

Mycobacterium tuberculosis can cause generalised tuberculosis in pigs

True

Calves are vaccinated with inactivated vaccines in order to prevent coli septicaemia

False

Oedema disease occurs most frequently in calves

False

Nocardia bacteria can cause inflammation of lymphatic vessels

True

Germinative infection does not occur in the case of E. coli diseases of poultry

False

Cattle are infected with nocardia bacteria from the soil

True

Neonatal coli diarrhoea of piglets is seen typically in 1-10-day-old animals

True

Actinomyces hordeovulneris can cause actinomycosis of dogs

True

The agent of swine typhoid can cause focal in􀃖ammation and necrosis in the parenchymal organs.

True

Abortion is the main clinical form of human salmonellosis

False

Arthritis can be a clinical sign of bovine salmonellosis

True

Fowl paratyphoid is limited to the gut, there is no septicaemia

False

Salmonella Choleraesuis can cause swine paratyphoid

True

Mucoid and watery diarrhoea are typical in the case of coli-diarrhoea of rabbits

True

Lesions of swine typhoid are in the large intestine

True

Mannheimia haemolytica can cause respiratory pasteurellosis of calves

True

Germinative infection is a common way of transmission of the agent of ornithobacteriosis

False

Arthritis can be a clinical sign of ovine pasteurellosis

True

Overcrowding is a predisposing factor of respiratory pasteurellosis of cattle

True

Otitis media can be a clinical sign of rabbit pasteurellosis

True

The most severe form of fowl cholera occurs in day-old birds

False

Fusobacterium necrophorum subsp. necrophorum is the causative agent of necrobacillosis.

True

Orchitis is a frequent clinical sign of contagious equine metritis

False

Histophilus ovis can cause pneumonia in cattle

True

Abortion is a clinical sign of bovine brucellosis

True

IBR and PI-3 virus can predispose cattle to disease caused by Histophilus ovis

True

Focal inflammation and necrosis in the liver is a common postmortem lesion on of fowl cholera

True

Infectious coryza occurs in chicken, turkey, and waterfowl

False

High fever is a clinical sign of actinobacillus pleuropneumonia of swine

True

Brucella canis can infect humans

True

Brucella melitensis can cause abortion of cattle

True

The agent of tularaemia can be transmitted by ticks

True

Tularaemia is a zoonosis

True

The reservoir host of the agent of tularaemia is the hare

True

Brucella suis can colonise the udder of cattle

True

Infected cattle carry brucellae lifelong

True

Glanders occurs only in horses

False

Humans are susceptible to the agent of glanders

True

Bordetella bronchiseptica can complicate distemper

True

Bordetella bronchiseptica can complicate calicivirus infection of cats

True

Granulomas in the skin are frequent clinical signs of glanders

True

The causative agent of avian bordetellosis is Bordetella bronchiseptica

False

Infection with the agent of glanders can be detected using the mallein test

True

Campylobacters are microaerophilic bacteria

True

Swine dysentery can mainly be seen in suckling piglets

False

Spirochaetes are resistant bacteria

False

Campylobacter fetus subsp. fetus can cause bacteriaemia, septicaemia is small ruminants

True

Regional ileitis is a form of proliferative enteropathies

True

Salpingitis can be seen in the case of bovine genital campylobacteriosis

True

Introduction of young ewes in their first pregnancy into the flock of old pregnant ewes can predispose to campylobacteriosis

True

Leptospirosis of young dogs is manly caused by Leptospira Canis

False

Haemorrhages under the serous membranes are typical postmortem lesions of swine dysentery

False

Focal inflammation and necrosis can be seen in the liver in the case of swine dysentery

False

Abortion can be a clinical sign of bovine leptospirosis

True

Set of foetuses can be seen in the case abortion of sows caused by Leptospira bacteria

True

Leptospirosis can be an acute disease in calves

True

Diarrhoea is a frequent clinical sign of bovine leptospirosis

False

Q-fever is caused by Coxiella bovis

False

The resistance of the agent of Q-fever is low, it cannot survive in the environment

False

The agent of Q-fever is transmitted by ticks

True

Fibrinous pneumonia is a postmortem lesion of heartwater

False

Contagious agalactia of sheep and goats is caused by Mycoplasma agalactiae

True

Contagious bovine pleuropneumonia cannot be prevented by vaccination

False

Contagious bovine pleuropneumonia is caused by Mycoplasma mycoides subsp. mycoides

True

Mycobacteria are acid and alcohol fast bacteria

True

Mycobacteria are facultative intracellular bacteria

True

Cough is a typical clinical sign of bovine pulmonary tuberculosis

True

Giant cells typically occur in tubercles

True

The thermal tuberculin test can be used in order to examine the organic reaction of bovine tuberculosis

True

Paratuberculosis is caused by Mycobacterium avium subsp. paratuberculosis.

True

The agent of avian tuberculosis infects animals generally per os

True

The tuberculin test in cattle can be false negative if only short time (1- 3 weeks) has passed since the infection

True

The agent of paratuberculosis is a facultative intracellular bacterium

True

Mycobacterium avium subsp. avium causes tuberculosis in humans

False

Actinomyces bovis is the causative agent of bovine actinomycosis

True

Fusobacterium necrophorum subsp. necrophorum causes necrobacillosis

True

The causative agent of foot rot is Dichelobacter nodosus

True

main virulence factors of Dichelobacter nodosus are toxins

False

Foot rot occurs only in sheep

False

Calves are vaccinated with inactivated vaccines in order to prevent coli septicaemia

False

Nocardia are Gram-positive branching filaments

True

Examination of skin scraping under the microscope is important diagnostic method for the diagnosis of dermatophilosis

True

Rhodococcus equi causes mainly metritis and urinary tract infections

False

Dermatophilus congolensis is mainly a human pathogen

False

Oedema disease generally occurs 1-2 weeks after weaning

True

There is widespread vaccination for the prevention of oedema disease

False

Air sacculitis is common in the case of E. coli disease of poultry

False

E. coli O157:H7 strains can cause haemorrhagic enteritis in cattle

False

Omphalitis is a frequent sign of Escherichia coli disease of day-old chicken

True

Salmonellosis of cattle occurs mainly in day-old calves

False

Faeces of asymptomatic cattle can be the source of infection with zoonotic Escherichia coli strains.

True

Arthritis can be a clinical sign of bovine salmonellosis

True

Enterotoxigenic Escherichia coli strains are responsible for oedema disease

False

Cattle shed salmonellae in the faeces

True

Inflammation of the small intestine is a postmortem lesion of swine paratyphoid

True

Swine typhoid occurs in endemic herds above 3 months of age

True

Necrotic enterocolitis is a postmortem lesion of of typhocolitis of swine.

True

Vaccination is not recommended for the prevention of swine typhoid

True

Swine paratyphoid is mainly seen in suckling piglets

False

Salmonella Typhimurium can infect humans

True

Fowl typhoid is caused by Salmonella Avium

False

Fowl typhoid can be seen sporadically in zoo birds in Europe

True

Omphalitis is a clinical sign of fowl typhoid

True

Salmonella Avium is the main aetiological agent of fowl paratyphoid

False

Fruits and vegetables can be the source of human infection by yersiniae.

True

Haemorrhagic septicaemia of cattle is generally a chronic disease

False

Capsule can be virulence factor of Pasteurella multocida

True

Yersinia enterocolitica generally infects hosts per os

True

Primary pasteurellosis diseases are caused by obligate pathogenic Pasteurella bacteria.

False

Ewes have to be culled after mastitis caused by Mannheimia haemolytica because the udder cannot regenerate

False

Inactivated vaccines can be used for the prevention of ovine pasteurellosis.

True

Respiratory viruses can predispose sheep to pasteurellosis

True

Acute systemic pasteurellosis occurs mainly among 3-12 months old lambs.

False

Acute systemic pasteurellosis is caused by Pasteurella multocida

False

The mortality of fowl cholera is low

False

Rabbit pasteurellosis is a generalised disease

True

The block of the lachrymal channel is a clinical sign of atrophic rhinitis

True

Pasteurella multocida can infect humans

True

The dermonecrotoxin of Pasteurella multocida damages the osteoclast cells

False

Asymptomatic carriage of Pasteurella multocida can occur in birds

True

Per os antibiotic treatment must be used in the case of fowl cholera

True

Deformation of the eggshell can be seen in the case of ornithobacteriosis.

True

Antibiotics cannot be used for the treatment of fowl cholera

False

Brucellosis is generally a notifiable disease

True

In case of brucellosis our aim is eradication and maintain the disease free status

True

Brucella abortus can cause necrosis in the chorionic villi of pregnant cattle.

True

ABR test can detect antibodies against Brucella abortus in milk

True

Wild boars and wild hares can serve as reservoir species of swine brucellosis.

True

Herd replacement is the only way of eradication of porcine brucellosis.

True

Cattle can be asymptomatic carriers of brucellae

True

Brucella ovis can infect bulls and can cause epididymitis and orchitis

False

Undulant fever, malaise, inappetence, fatigue, and muscle and joint pains can be the clinical sings of human brucellosis.

True