Midterm 4 (By bacteria 1) Flashcards by Henriette Wisnes

Actinomycosis of cattle is caused by Actinomycosis bovis

True

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In the case of bovine actinomycosis lesions can be seen in the mandible or maxilla

True

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Bovine actinomycosis is caused by Actinomyces bovis and Actinomyces lignieresii

False

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Bovine actinomycosis causes changes in the upper and lower jaw

True

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In bovine actinomycosis, the first changes are seen in the udder

False

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Actinomyces causes a generalized infection

False

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Lumpy jaw in cattle is caused by Actinomyces bovis

True

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In the case of actinomycosis in pigs the lesions are seen in the udder

True

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Dogs are resistant to actinomycosis

False

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Sulphur granules are typical lesions of actinomycosis

True

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Actinomyces viscosus can infect the udder of sow

False

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Actinomyces can affect the retropharyngeal lymph nodes

True

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In dogs, grass awns can be a predisposing factor for actinomycosis infection

True

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Lumpy jaw of cattle is caused by Actinobacillus bovis

False

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A. hordeovulneris and A. viscosus can cause pleuritis, peritonitis and pericarditis

True

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A. israelii is the causative agent if canine actinomycosis

False

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Swine actinomycosis is caused by Actinomycosis bovis

True

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Actinomyces species are epiphytes

True

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Actinomycosis bovis can cause udder infection in horses

False

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Dogs can be infected by Actinomyces bovis

False

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Vaccines in cattle can be efficient for prevention of the actinomycosis disease

False

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Wound infection is the primary route of actinomycosis infection

True

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Actinomycosis is a gram-negative bacterium

False

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Horses are most sensitive to Actinomyces israelii

False

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Clinical signs and pathological findings of canine Actinomycosis and Nocardiosis are similar

True

Nocardiosis causes chronic mastitis in cows

True

Nocardia asteroides can cause generalized disease in dogs

True

Nocardia spp. in cattle primarily causes mastitis

True

Most susceptible species to Nocardiosis are dog and horse

False

N. asteroides causes cutaneous pyogranulomas in dog

True

Nocardia asteroides is zoonotic

True

Disseminated Nocardiosis in dog occurs after 1 year of age

False

Nocardiosis will cause acute mastitis in cattle

False

Bovine farcy causes chronic lesions in the superficial lymph nodes and vessels

True

Nocardiosis are found mostly in tropical and subtropical regions

True

Nocardia is a facultative aerobic bacterium

False

The agent of Dermatophilosis can survive in the environment

True

Dermatophilosis can be diagnosed by staining a direct smear from the lesions

True

Dermatophilosis can be diagnosed by microscopic examination

True

Dermatophilosis can be generalized

False

Dermatophilosis can affects also birds and plants

False

Dermatophilosis occurs only in Africa

False

Focal inflammation in the liver is a typical lesion of dermatophilosis

False

Dermatophilosis is predisposed by wet skin

True

Mycobacteria can survive in the environment

True

Mycobacteria cannot be cultured

False

Waxes and lipids in the mycobacteria are virulence factors

True

The agent of avian tuberculosis is an obligate pathogenic bacterium

True

Tuberculin test is an allergic test.

True

Mycobacteria can be cultured, but their incubation time is long

True

Tuberculosis is diagnosed by detecting antibodies to M. bovis in the blood with ELISA

False

M. tuberculosis can cause tuberculosis in swine

True

Bovine tuberculosis is a zoonosis

True

Tuberculosis causes generalized disease by organic infection in cattle

True

Tuberculosis cannot infect cattle per os

False

The center of the tubercle is necrotized

True

The tubercle consists of histiocytes and foreign body giant cell

True

The causative agents of tuberculosis are obligate pathogenic bacteria

True

Köster staining is a special staining for Mycobacteria

False

Mycobacteria are highly resistant

True

Early generalization of mycobacteria occurs via lympho-hematogenous route

True

Tuberculosis in cattle occurs especially in young animals

False

In dogs’ tuberculosis can be generalized

True

Mycobacterium species show a close relationship between the antigens

True

Mycobacterium bovis can cause generalized tuberculosis in badgers

True

Mycobacteria are intracellular pathogens

True

Cattle tuberculosis can be diagnosed by serological methods

False

Cattle tuberculosis is always generalized

False

Mycobacteria are a worldwide disease

True

Tuberculosis in cattle is prevented with frequent vaccinations

False

Europe is free from bovine tuberculosis

False

The causative agent of bovine tuberculosis is zoonotic

True

Mycobacteria are resistant to environmental factors

True

Cattle cannot be infected with mycobacteria per os

True

Cattle are infected with M. bovis mainly per os and enteric tuberculosis is most frequent

False

Cattle infected with M. bovis will carry the bacterium for a maximum of 1 year

False

Late generalization can be characterized by lost resistance

True

In the tubercle, coagulation necrosis is seen

True

In the phase of early generalization Mycobacteria do not replicate in the lymph node

False

In intestinal tuberculosis, diarrhea is the main clinical sign

True

Chronic tuberculosis causes changes in the lymph node

False

Mycobacteria can be demonstrated from the discharge of sick animals by staining

True

Tuberculosis can be demonstrated earliest by ELISA

False

Tuberculosis can first be diagnosed by PCR

False

The agents causing tuberculosis are obligate pathogen

True

Tuberculosis can be diagnosed with certainty serology

False

Mycobacteria can be seen by staining discharge from diseased animals

True

Mycobacterium infection in pigs can be zoonotic

True

Mycobacterium spp. in swine can be caused by atypical mycobacteria

True

Mycobacteria in swine can be caused by M. bovis and produces localized lesions

False

M. tuberculosis is a common mycobacterium infection of pig

False

Avian tuberculosis usually occurs at 6-8 weeks of age

False

Avian tuberculosis result in local processes

False

Avian tuberculosis can be diagnosed by slide agglutination or ELISA

True

Avian tuberculosis is a common disease in large scale farms causing high economic losses

False

Waterfowl are more susceptible to avian tuberculosis

False

Crepitation during liver transection is characteristic for avian tuberculosis

False

Tuberculosis of poultry occur mainly in breeder flocks

True

Avian tuberculosis occur over 1 year of age

True

The tuberculin test is unreliable in poultry

True

Mycobacteria contain lipids and waxes in the cell wall

True

There is antigenic relationship between the different Mycobacteria species

True

Facultative pathogenic Mycobacteria cannot colonize mammals

False

Some facultative pathogenic Mycobacteria can cause tuberculosis in cold blooded animals

True

In the case of bovine tuberculosis fetuses are generally not infected

True

Generation shift can be used for eradication of tuberculosis

True

Vaccination of 6-month-old calves with BCG vaccine will result eradication of tuberculosis

False

Mycobacteria are acid and alcohol fast bacteria

True

Mycobacteria are very resistant bacteria

True

After infection with Mycobacterium bovis cattle remain lifelong carriers

True

The primary complex in cattle is generally in the lungs and the mediastinal lymph nodes

True

Sawdust bedding can predispose pigs to infection by facultative pathogenic mycobacteria

True

Facultative pathogenic mycobacteria can cause generalized tuberculosis in pigs

False

The habitat of pathogenic mycobacteria is the soil

False

The habitat of facultative pathogenic mycobacteria is the soil

False

Only cattle are susceptible to Mycobacterium bovis

False

In cattle extrapulmonary tuberculosis does not occur

False

Late generalization is characterized by productive processes

False

Chronic tuberculosis affects organs together with lymph nodes

True

The skin intradermal tuberculin test has to be read after 72 hours

True

In the exhaust phase of the tuberculosis the intradermal tuberculin test can be false negative

True

The skin intradermal tuberculin test is negative if the thickness of the skin increased by 4.5 mm

False

Tuberculin test can detect about 50% of the infected animals

False

Tuberculin test in poultry is only 50% accurate

True

The skin intradermal tuberculin test is highly sensitive in cattle

True

Infection of cattle by facultative pathogenic mycobacteria can result false positive reaction in the skin intradermal tuberculin test

True

The skin intradermal tuberculin test is negative if the thickness of the skin increased by 4.1 mm

False

In case of positive tuberculin reactions in a herd, movement restriction has to be implemented

True

The skin intradermal tuberculin test is negative if the thickness of the skin increases 4 mm

False

The PPD-tuberculin (purified protein derivative) contains the antigenic abstract of the agent

True

During the general tuberculin test we give the tuberculin SC or IV

False

General tuberculin test is used to trigger a hypersensitivity reaction

True

The general tuberculin test (name) is not really used now a days

True

The tuberculin test can be false negative in cattle within 3 weeks after infection

True

Facultative pathogenic Mycobacteria can result false negative reaction in the tuberculin test

False

The tuberculin test is positive if the thickness of the skin increased by 4.2 mm and it is painful

True

The tuberculin test is doubtful if the thickness of the skin increased by 3.5 mm and it is painful

False

The tuberculin test is positive if the thickness of the skin is 3.5 mm and the site is not painful and there is no edema

False

The tuberculin test is positive if the thickness of the skin is 3 mm and the site is not painful and there is no edema

False

The tuberculin test is positive if the thickness of the skin is 2.5 mm and the site is painful with edema

True

The tuberculin test is positive when larger than 4 mm increase in skin thickness in 72 hours

True

The tuberculin test is positive if the thickness of the skin is <2 mm and with a local reaction

True

The tuberculin test is positive if the thickness of the skin is 2-4 mm and with no local reaction

False

The tuberculin test is positive if the thickness of the skin is <2 mm and with no local reaction

False

The tuberculin test is negative if the thickness of the skin is <2 mm and with no local reaction

True

The tuberculin test is negative if the thickness of the skin is 2-4 mm and with local reaction

False

The tuberculin test is negative if the thickness of the skin is <2 mm and with local reaction

False

The intradermal tuberculin test can be: False positive in case of infection by Mycobacterium avium subsp. paratuberculosis

True

The intradermal tuberculin test can be: False positive in case of anergy

False

The intradermal tuberculin test can be: False negative in case of pre-allergy

True

The intradermal tuberculin test can be: False negative in case of older, demarcated nodule

True

The intradermal tuberculin test can be: False negative in case of infection with another mycobacterium

False

The intradermal tuberculin test can be: False negative in case of anergy

True

The intradermal tuberculin test can be: False positive in case of pre-allergy

False

The intradermal tuberculin test can be: False positive in case of an old closed focus

False

Tuberculin test is false negative in case of old, encapsulated lesions

True

Tuberculin test is false negative in case of pre-infection

True

At the end of the disease the probe/intradermal skin test can be negative

True

In other types of tuberculosis infections the intradermal tuberculin can be positive

True

The tuberculin reaction is negative if the thickness of the skin is increased by 1.8 mm and not painful

True

The tuberculin reaction is doubtful if the thickness of the skin increased by 2.8 mm and it is painful

False

In the exhaustion phase of the tuberculosis the tuberculin test can be false positive

False

Using the thermal tuberculin test, organic reactions can be increased

True

In case of para-allergic reaction we carry out the comparative tuberculin test

True

In case of para-allergic reaction we eliminate the positive animals immediately

True

In case of para-allergic reaction we perform a test-cut

False

In addition to para-allergic test we can carry out a gamma interferon test

True

The tuberculin test is negative if the thickness of the skin is 3 mm and with no local reaction

False

Paratuberculosis is seen in young calves

False

Lesions of paratuberculosis are localized in the small intestine

True

In the case of paratuberculosis tuberculi can be seen in the anterior lobes of the lungs

False

Paratuberculosis can be treated with polymyxins

False

Paratuberculosis is seen cows above 2 years of age

True

Lesions of the paratuberculosis are localized in the small and large intestine

False

In the case of paratuberculosis no tuberculi are seen

True

Weight loss is a typical sign of paratuberculosis

True

In paratuberculosis, the nodules are seen primarily in the large intestine

False

Paratuberculosis can be demonstrated by LST during early stages of infection

True

Paratuberculosis can be prevented by early vaccination of the calves

True

Paratuberculosis can be treated with penicillin and enrofloxacin

False

Paratuberculosis can be prevented by vaccination

True

Paratuberculosis is believed to cause Chron’s disease

True

Young animals are resistant to paratuberculosis

False

Wasting is the main clinical sign

True

Paratuberculosis is also called Johne’s disease

True

It is a chronic disease with diarrhea affecting mainly ruminants (CS: 2-5 years)

True

The disease paratuberculosis can develop in animals above 2 months

False

Paratuberculosis can be prevented by vaccination only in countries where it is eradicated

True

In Paratuberculosis, nodules can be found in intestinum crassum

False

Young animals are more susceptible to paratuberculosis

True

Paratuberculosis virulence factor is phospholipase C

True

Paratuberculosis cause proliferative enteritis in small intestines

True

Cattle paratuberculosis shows more severe lesions than sheep/goat

True

Pneumonia caused by Rhodococcus equi is typically seen in 1-4 months old foals

True

Rhodococcus equi causes interstitial pneumonia in foals

False

Rhodococcus equi can cause only pneumonia in foals

False

Equine herpesvirus-2 can predispose horses to pneumonia caused by Rhodococcus equi

True

Rhodococcus equi can cause suppurative bronchopneumonia in foals

True

Rhodococcus equi can cause only respiratory disease in foals

False

Bronchopneumonia caused by R. equi is typically seen in foals between 1 and 4 months of age

True

Combination of Rifampicin and Macrolides antibiotics is used for the treatment of bronchopneumonia caused by R. equi

True

Rhodococcus equi can cause pneumonia in foals of 5-6 months of age

False

Pneumonia caused by Rhodococcus equi is a chronic disease

True

Serous pneumonia is caused by Rhodococcus qui

False

Pneumonia caused by Rhodococcus equi is treated with penicillin

False

Rhodococcus equi can cause clinical signs in humans

True

R. equi causes pneumonia in foals aged 6-8 months

False

R. equi pneumonia is transmitted from foal to foal

False

R. equi causes severe catarrhal pneumonia

False

Pneumonia caused by R. equi can be treated with rifampicin and erythromycin for 4-5 days

Fale

R. equi is an obligate anaerobic bacterium

False

R. equi causes high mortality in infected foals

True

R. equi can cause ulcerative enteritis

True

Rhodococcus equi is usually seen during the winter

False

R. equi causes pneumonia with large abscesses

True

R. equi pneumonia can be treated with rifampicin and erythromycin for 4-10 weeks

True

Foals suffering from Rhodococcus equi can be treated with any antibiotic

False

Pneumonia caused by R. equi is a fast spreading acute disease

False

Many of the clinically sick animals recover after treatment for R. equi infection

True

R. equi pneumonia is transmitted by inhalation of contaminated dust

True

R. equi cause purulent pneumonia

True

Enterotoxic E. coli strains attach to enterocytes

True

The enterotoxic E. coli strain produces verotoxins

False

The enterotoxic E. coli strains cause edema disease

False

Enterotoxic E. coli strains attach to enterotoxins

False

Enterotoxic E. coli strains produce fimbriae

True

Enterotoxigenic E. coli strains produce fimbriae

True

Enterotoxin cause enteritis in the large intestine

False

Enterotoxigenic E. coil strains produce fimbria and enterotoxins

True

Verotoxins inhibit protein synthesis

True

Verotoxins damage the endothelial cells

True

Coli-diarrhea of calves is caused by verotoxic E. coli strains

False

Coli-diarrhea of calves is caused by E. coli strains equipped with fimbriae

False

In coli-diarrhea of calves we can see severe inflammation of the colon

False

Coli-diarrhea of the calf is caused by fimbriated E. coli strains

True

Coli-diarrhea of calves is caused by enterotoxic E. coli strains

True

Coli-diarrhea of the calf is characterised by a severe inflammation of the large intestine

False

Transport is the most important predisposing factor in coli-diarrhea

False

Coli-septicaemia is a disease of weaned calves

False

Coli-septicaemia causes severe hemorrhagic diarrhea

False

Coli-septicaemia causes high fever

False

Calf dysentry is caused by verotoxigenic E. coli

True

Transportation is an important predisposing factor of coli-septicemia

False

Coli-septicaemia is seen in day-old calves

True

Pneumonia is an important clinical sign of coli-septicaemia in calves

False

Coli-diarrhea of calves appears in the first week of life

True

Coli-diarrhea of calves can be treated with per oral polymyxin

True

E. coli can cause bloody diarrhea in calves

True

Fimbria F5 is an important virulence factor of E. coli strains causing neonatal diarrhoea of calves

True

Enterotoxigenic E. coli strains causes diarrhoea in new-born calves

True

Verotoxigenic E. coli strains are present in the gut of cattle without clinical signs

True

E. coli diarrhea in swine occurs in sows in their first pregnancy

False

E. coli diarrhea in swine occurs in large scale farms worldwide

True

The feces of weaned piglets with coli-diarrhea has a strong smell

True

E. coli diarrhea in swine is caused by enterotoxigenic E. coli

True

E. coli diarrhea occurs in weaned piglets at 1-2 weeks after weaning

True

Coli-diarrhea of newborn piglets is caused by enterotoxigenic E. coli strains

True

There are no vaccines to prevent coli-diarrhea of newborn piglets

False

Weaning can predispose piglets to diarrhea caused by E. coli

True

Weaning can predispose piglets to septicemia caused by E. coli

False

Less colostrum is a predisposing factor for coli-diarrhea in weaned pigs

Fasle

Coli-diarrhea of newborn piglets occurs mainly in the litter of sows in their first pregnancy

True

Coli-diarrhea of weaned piglets is generally prevented by vaccinating sows

False

Enterotoxic E. coli strains can cause disease in swine

True

Enterotoxigenic strains are the causative agents of coli-diarrhoea in weaned piglets

True

Verotoxins are involved in the pathogenesis of coli-diarrhoea in suckling piglets

False

The enterotoxigenic E. coli strains cause neonatal diarrhea in calves and piglets

True

E. coli in chicken found worldwide

True

E. coli is caused by enteroinvasive E. coli

True

Germinative infection occurs in case of E. coli disease in poultry

True

Enterotoxigenic E. coli strains can cause septicemia in day old chicken

False

Enterotoxigenic E. coli causes death in young chicks

False

E. coli is not a normal inhabitant of the gut flora in rabbits

True

Caused by Enteropathogenic E. coli

True

E. coli kills the embryo in the egg

True

PO antibiotics via drinking water is a good way of treating E. coli in poultry

True

E. coli disease in poultry mostly occurs in layers at beginning of egg-laying period

False

E. coli disease in poultry causes severe encephalitis in septicemic form

False

Vaccines can be used for the prevention of E. coli disease in poultry

False

E. coli strains cause generalized infection in day old chicken

False

Retarded absorption of the yolk sack is a post mortem lesion in coli-septicemia in chickens

False

E.coli strains cannot cause germinative infection in chickens

False

Edema disease of swine occurs before weaning

False

Edema disease may be lethal after paralytic symptoms

True

Edema disease is seen mainly in large scale farms with poor hygiene

False

Edema disease is caused by VTEC strains

True

In edema disease, antibiotics are used to treat diseased piglets

False

Edema disease occurs in the first week of life

False

V erotoxins damage the endothelial cells

True

Verotoxins cause diarrhea in young piglets

False

Edema disease of swine may cause paralysis prior to death

True

Edema disease of swine occurs at 1-2 weeks old

False

Insufficient colostrum is an important predisposing factor for edema disease

False

The feces of weaned piglets with coli-diarrhea contains undigested particles

True

The lesions in Necrobacillosis are restricted to the mouth

False

Necrobacillosis occurs mainly in young animals

False

There is no treatment for Necrobacillosis

False

Umbilical disinfection has an important role in the prevention of Necrobacillosis

True

Necrobacillosis in lambs can be seen as a result of an umbilical infection

True

Fusobacterium necrophorum subsp. necrophorum strains can cause Necrobacillosis of calves

True

F. necrophorum subsp. necrophorum strains are involved in the pathogenesis of foot rot

True

You can find necrosis in the mouth in case of Necrobacillosis in lambs

True

You can find liver abscesses in case of Necrobacillosis

False

Animals with softened hoof wall are more susceptible for panaritium (foot rot)

True

Contaminated, dirty bedding is a predisposing factor for foot rot

True

In the development of foot rot, fimbriae of the pathogen have an important role

True

Treatment of foot rot is using foot bath containing formalin and sterogenol

True

For treatment of panaritium, formalin foot baths are recommended

True

Foot rot is a very rare disease in Europe

False

Fimbria and extracellular enzymes are the virulence factors of the agent of foot rot

True

Changes caused by Necrobacillosis are only seen in the oral cavity

False

Dichelobacter causes Necrobacillosis

False

The causative agent of foot root can produce exotoxins

False

The causative agent of foot root can produce enzymes

True

Foot rot can be prevented by foot bath

True

Animals with soft horn are more predisposed to panaritium

True

Strongly contaminated bedding is a predisposing factor to panaritium

True

The fimbriae of the pathogens play an important role in the development of panaritium

True

To treat severe foot rot we use parenteral antibiotics

True

All Salmonella species are zoonotic

False

Salmonella are generally resistant bacteria

False

We use isolation and ELISA for detection of Salmonella

True

The cell wall, flagella and virulence factors are the antigens of Salmonella

True

Septicemia is the most common presentation of human salmonellosis

False

We use tetracyclines in the treatment of human gastroenteritis caused by Salmonella spp.

False

Salmonellosis mostly affect the elderly and young people (children)

True

All Salmonella serotypes can infect humans

False

Salmonellosis can sometimes be generalized

True

Exotoxins are important virulence factors of salmonella

False

An allergic test can confirm salmonellosis

False

Salmonella is cultivated from parenchymal organs

True

Septicemia is always seen in salmonellosis

False

Swine typhoid is spread by rodents

False

In swine typhoid transport is an important predisposing factor

False

Swine typhoid are mostly seen in 2-3-week-old piglets

False

In swine typhoid, bacterial isolation is the best way to detect the bacteria

True

Serology is an important tool to identify S. Typhisuis

False

In swine typhoid, pathological changes are seen in the large intestine

True

In swine typhoid, pathological changes are seen in the whole intestines

False

Swine typhoid is caused by S. typhi

False

Swine paratyphoid is a sporadic rare disease

False

Swine paratyphoid occurs in piglets between 2-5 weeks of age

False

Swine paratyphoid is caused by S. typhisuis

False

In the case of swine paratyphoid, enteritis can be seen in the small intestines

True

Hyperemic enlargement of the spleen is typical in the case of swine paratyphoid

False

Swine paratyphoid most often occurs in 2-5 months old piglets

True

Inactivated vaccines can be used in the prevention of swine paratyphoid

True

Cyanosis can be seen in swine paratyphoid

True

In swine paratyphoid lesions are seen in SI and LI

True

In case of swine paratyphoid, it is easy to diagnose in the feces

False

Cyanosis of lower parts of the body can be seen in swine paratyphoid

True

Swine typhlocolitis is a common disease with high mortality

False

High fever is an important clinical sign in case of swine typhlocolitis

False

In case of swine typhlocolitis are mostly seen in the large intestines

True

Swine typhlocolitis can be transmitted with birds and rodents

True

Salmonellosis in cattle is an endemic disease in young animals

True

We can use vaccination in cattle to prevent salmonella

True

Salmonellosis in cattle, lesions are mostly seen in the stomach

False

Salmonella of calves causes bloody diarrhea

True

S. abortusovis can cause sporadic abortions in cattle

False

Calf salmonellosis causes inflammation of the small intestine

True

Salmonella in calves can be treated successfully with penicillin

False

Salmonella can cause generalized disease/fever in caves

True

Salmonellosis in calves cause ileitis

True

We can use isolation or ELISA for detection of Salmonellosis in cattle

False

We can use quinolones to treat salmonellosis in cattle

True

Age is the most important predisposing factor in the case of cattle salmonellosis

False

Salmonellosis of calves occur in increased number if calves were brought from different farms

True

Salmonella is seen in the large intestine of cattle

False

Parasitic infections are an important predisposing factor of salmonella in sheep and goat

True

In the generalized form of salmonellosis in sheep and goat, a watery foamy diarrhea can be seen

True

Abortion caused by S. abortusovis is very common in goats

False

Mixing of young and older ewes is the most important predisposing factor in the abortive form

True

Venereal infection is the primary mode of infection in case of S. abortusovis

False

Serology is a good way to diagnose abortive salmonellosis in sheep

True

Vaccination is the best way to prevent S. abortusovis

False

Salmonella abortion of sheep occurs in late winter

True

Focal inflammation and necrosis is seen in the liver of lambs in case of salmonellosis

True

Salmonella abortion of sheep occurs mainly in older ewes

False

S. abortusovis can cause abortion only in sheep

True

Salmonella spp. can cause abortion in horses

True

Foal septicemia in case of salmonellosis causes bloody diarrhea

True

Foal septicemia in case of salmonellosis is highly age-related

False

Mycotoxins are an important predisposing factor in foal septicemia

True

Foal septicemia is caused by S. typhimurium

True

Abortion caused by S. abortusequi occurs a few days after the infection

False

Salmonellosis of horses in abortive form, most often occurs in older mares

False

Abortion caused by S. abortusequi most often occurs in the 2nd trimester

False

Salmonella in carnivores is mostly caused by S. typhimurium

True

High number of bacteria are needed to cause an infection in case of salmonellosis in carnivores

True

Carnivores usually contract salmonella by eating contaminated raw meat

True

Salmonellosis in carnivores can be seen only in young and weak animals, or immunodeficient animals

True

CNS signs can occur in foxes in case of salmonellosis

True

Asymptomatic carriage of Salmonella can occur in poultry

True

Arthritis can be a clinical sign of Salmonellosis in birds

True

Fowl typhoid have an exponential loss curve

False

Fowl typhoid can infect the ovaries

True

White diarrhea is a sign in young chickens with fowl typhoid

True

We can use slide agglutination to detect fowl typhoid

True

We can use tetracyclines to treat fowl typhoid

True

Fowl typhoid is caused by facultative pathogenic Salmonella

False

Rotting eggs are an important clinical sign of fowl typhoid

False

Dead eggs can be seen in fowl typhoid

True

Fowl typhoid can be seen only in adult birds

False

Decreased hatchability is an important clinical sign of fowl typhoid

True

Fowl typhoid propagates by germinative infection

True

Diarrhea is not a typical clinical sign of fowl cholera

False

Fowl typhoid is more frequent in water fowl than hens

False

Fowl typhoid is usually a disease of waterfowl

False

The highest infection rate of fowl typhoid is between days 8-10

False

The susceptibility to fowl typhoid increases with age

False

Fowl paratyphoid is a rare and sporadic disease

False

Fowl paratyphoid mostly occurs in 0-2 weeks old chickens

True

Fowl paratyphoid infection occurs by PO or germinative routes

True

Purulent conjunctivitis can occur as a clinical sign in ducks with fowl paratyphoid

True

Fluoroquinolones can be used to treat fowl paratyphoid

True

Fowl paratyphoid can be spread by rodents

True

Fowl paratyphoid can occur alone only in the first 2 weeks of life

True

Live and attenuated vaccines can be used to prevent fowl paratyphoid

True

Fowl paratyphoid usually causes generalized disease

True

Fowl paratyphoid causes disease mainly in water fowl

False

We can certify “Salmonella-free” status of poultry stocks with serological tests

False

Fowl paratyphoid causes high morbidity mostly in water birds

True

Primary replication sites of Y. enterocolitica are the tonsils and lymphoid tissue of gut

True

Y. enterocolitica has a narrow host range

False

Y. enterocolitica can be treated with tetracyclines

True

Swine is an important host of Y. enterocolitica

True

Chronic lesions caused by Y. enterocolitica resemble the lesions of tuberculosis

False

Hare and chinchilla are most susceptible to Y. enterocolitica

False

Rodentiosis is caused by Y. pseudotuberculosis

True

Y. pseudotuberculosis is relatively resistant and replicates in the environment

True

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

True

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

False

Y. pseudotuberculosis is normally present in rodents

False

Y. pseudotuberculosis sporadically causes abortion in cattle

True

Y. pseudotuberculosis can cause inflammatory necrosis lesions in rodent

True

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

True

Midterm 4 (By bacteria 1) Flashcards

(437 cards)