Microbiology (All subtopics) Flashcards by Milagros Andrea Alemania Mateo

Which of the following is the largest animal virus?
a.arterivirus
b.poxvirus
c.adenovirus
d.birnavirus

Poxvirus

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Which is not a characteristic of Mycoplasma?
a.Fried egg” appearance of colonies
b.Lacks a cell wall
c.Contain DNA and RNA
d.Possess peptidoglycan

Possess peptidoglycan

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You get called upon to assist in an outbreak investigation in a neighbouring district. Several duck farmers in the district have reported significant mortalities of ducks in their flocks. All ducks are unvaccinated and affected ducks do not show any clear clinical signs. You are tasked to visit one affected farm later today, interview the farmer and take samples of the flock. What would be the appropriate level of PPE while handling affected ducks during this farm visit?
a.Nothing, this investigation has just started, and no disease has been confirmed yet.
b.Cleaned gumboots to avoid spreading disease to this flock.
c.Overalls, gumboots, gloves, goggles, disposable N95 mask as there is a potential zoonotic infection risk.
d.Totally encapsulated suit with self-contained breathing apparatus to eliminate any risk.

Overalls, gumboots, gloves, goggles, disposable N95 mask as there is a potential zoonotic infection risk

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This disease is an example of an occupational hazard:
a.Erysipeloid
b.West Nile Fever
c.Hantavirus Pulmonary Syndrome
d.Leptospirosis

Erysipeloid

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The mechanism of action of the botulinum toxin is to:
a.Block the release of inhibitory mediator
b.Stimulate the release of prostaglandin from epithelial cells
c.Block protein synthesis by ADP ribosylating EF-2
d.Activate host cell adenylate cyclase

Block protein synthesis by ADP ribosylating EF-2

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In assessing titer, how long after the first serum sample is collected should the second sample be collected?
a.7 days
b.3 days
c.2-6 weeks
d.14 weeks

2-6 weeks

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General term for fungi that can occur in both mold and yeast form.
a.bisexual
b.dimorphic
c.haustoria
d.rhizoids

Dimorphic

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Based on the replication of Togaviruses, the virus will replicate in the:*
a.nucleus
b.cytoplasm
c.it can happen on both sites
d.location outside the living cell

Cytoplasm

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In a integrated farm, an outbreak of Tetanus has been reported. Which among the following animals will be mostly affected?
a.goat
b.horse
c.chicken
d.cattle

Horse

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What is the primary toxin responsiblefor Paralytic Shellfish Poisoning (PSP)?

1/1

a.Saxitoxin
b.Tetrodotoxin
c.Ciguatoxin
d.Domoic acid

Saxitoxin

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The most commonly used agent for gas sterilization is:
a.Glutaraldehyde
b.Formaldehyde
c.Chlorhexidine
d.Ethylene oxide

Ethylene oxide

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Which is an intracellular organism that occurs outside of the host cell as elementary bodies?
a.Mycobacterium avium
b.Aspergillus fumigatus
c.Pseudomonas aeruginosa
d.Chlamydia psittaci

Chlamydia psittaci

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Period of bacterial growth when there is rapid multiplication of cells?
a.lag phase
b.log phase
c.stationary phase
d.period of decline

Log phase

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IL-1 is produced mainly by what cells?
a.NK cells
b.macrophage
c.CD4 T cells
d.Th1 cells

Macrophage

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What is the cause of blue ear disease?
a.arterivirus
b.poxvirus
c.adenovirus
d.birnavirus

Arterivirus

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The epidemiologic triad of disease causation refers to:
a.Agent, host, environment
b.Time, place, person
c.Source, mode of transmission, susceptible host
d.John Snow, Robert Koch, Kenneth Rothman

Agent, host, environment

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The diarrhea and dehydration seen in calves with colibacillosis are mainly attributable to the effects of:
a.Enterotoxin
b.Endotoxin
c.Verotoxin
d.Lipopolysaccharide

Enterotoxin

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A reservoir of an infectious agent can be:
a.A symptomatic human
b.An animal
c.The environment
d.All of the above

All of the above

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Which of the following diseases is caused by gram positive bacteria?
a.Purulent pneumonia in foals
b.Tracheobronchitis in dogs
c.Tularemia
d.Fowl coryza

Tracheobronchitis in dogs

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During milk ring test, what is the indication if the milk at the bottom of the tube becomes gradually whitened?
a.positive result
b.negative result
c.result is inconclusive and the test should be repeated
d.partially negative

Result is inconclusive and the test should be repeated

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Transmissible gastroenteritis virus cross-reacts serologically with:
a.Pseudorabies virus
b.Hog cholera virus
c.Bovine viral diarrhea virus
d.Porcine corona respiratory virus

Porcine corona respiratory virus

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Which of the following vaccutainer can be used in the collection of your sample for antibody detection?
a.the one with green cap
b.the one with purple cap
c.the one with red cap
d.the one with yellow cap

The one with red cap

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Which of the following is the transmitter of Hendra virus?
a.dogs
b.bats
c.guinea pig
d.firefly

Bats

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Which bacteria is associated with Hamburger Disease is US?
a.Brucella foetus
b.Escherichia coli
c.Vibrio cholera
d.Staphylococcus aureus

Escherichia coli

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Double-dead is a Filipino appellation of meat obtained from a diseased animal or of an animal which has died other than slaughter. The Meat Inspection Code properly refers to this as: a.Adulterated b.Hot meat c.Condemned d.Misbranded

Adulterated

Population of the city of Atlantis on March 30, 2012 = 183,000 No. of new active cases of TB occurring between January 1 and June 30, 2012 = 26 No. of active TB cases according to the city register on June 30, 2012 = 264 The incidence rate of active cases of TB for the 6-month period was ______ per 100,000 population. a.7 b.14 c.26 d.28

A cohort study differs from a case-control study in that: a.Subjects are enrolled or categorized on the basis of their exposure status in a cohort study but not in a case-control study b.Subjects are asked about their exposure status in a cohort study but not in a case-control study c.Cohort studies require many years to conduct, but case-control studies do not d.Cohort studies are conducted to investigate chronic diseases, case-control studies are used for infectious diseases

Subjects are enrolled or categorized on the basis of their exposure status in a cohort study but not in a case-control study

What is the major antibody produced during a primary response? a.IgA b.IgG c.IgM d.IgD

IgM

Touching or feeding animals and licks on the skin is an example of what type of contact to rabies virus? a.Type I b.Type II c.Type III d.Type IV

Type I

What is the causative agent of Wooden tongue in cattle? a.Actinobacillus lignieresii b.Nocardia asteroids c.Dermatophilus congolensis d.Moraxella bovis

Actinobacillus lignieresii

Which of the following bacteria are capable of producing motile zoospores? a.Actinomyces b.Brucella c.Dermatophilus d.Corynebacterium

Dermatophilus

During an ante-mortem inspection at a slaughterhouse, which scenario is most likely to be a significant concern that warrants further investigation? a.A cow with a slightly abnormal posture but normal appetite and alert behavior. b.A pig showing signs of moderate respiratory distress, accompanied by high fever and visible skin lesions. c.A goat with a minor but persistent limp and normal feeding behavior. d.A chicken with extensive external abscesses visible on the carcass

A pig showing signs of moderate respiratory distress, accompanied by high fever and visible skin lesions

False negative tuberculin tests may occur in: a.Heavily parasitized cattle b.Heavily pregnant cows c.Very old cattle d.Jersey cattle

Heavily pregnant cattle

An acidic reaction in the slant and butt portions of a triple sugar-iron medium indicates: a.Fermentation b.Carbohydrate utilization c.Deamination d.Desulfurylation

Fermentation

Which of the following yeasts become concentrated in pigeon feces that are rich in creatinine? a.Candida albicans b.Cryptococcus neoformans c.Malassezia pachydermatis d.Histoplasma capsulatum

Cryptococcus neoformans

Which of the following is most suitable for sterilization of an antiserum? a.Irradiation b.Steam sterilization c.Filtration d.Dry heat

Filtration

Primary reservoir of Q fever: a.Birds b.Cattle, sheep, and goats c.Contaminated water; rodents d.Wild carnivores

Cattle, sheep, and goats

Prevalence measures the 1)_______ of cases within a 2)_______-at-risk at a specified 3)______ in time. a.1) number 2) group 3) point b.1) proportion 2) population 3) date c.1) proportion 2) population 3) point d.1) proportion 2) group 3) date

1) proportion 2) population 3) point

Which of the following is the major immunoglobulin found in the pig’s body surfaces? a.IgA b.IgG1 c.IgM d.IgD

IgA

Abortion in cow can be suspected to be cause by Brucella spp if it occurs ___? a.on the first month b.on the third month c.on the fourth month d.on the seventh month

On the seventh month

Which of the following is a primary cause of Pale Soft Exudative (PSE) pork? a.Rapid decline in pH (reaching 5.5 within 30-60 mins) due to Lactic acid accumulation and failure to chill meat rapidly b.Insufficient feed intake and poor nutrition during the growth period c.Infection with specific bacterial pathogens causing discoloration and texture changes in the meat d.Inadequate aging of pork

Rapid decline in pH (reaching 5.5 within 30-60 mins) due to Lactic acid accumulation and failure to chill meat rapidly

It serves as a mordant during routine gram staining? a.safranin red b.acetone alcohol c.crystal violet d.iodine

Iodine

Legal mandate declaring March as the Rabies Awareness Month, Rationalizing the Control Measures for the Prevention and Eradication of Rabies and Appropriating Funds. a.Republic Act 9482 b.Batas Pambansa Bilang 97 c.Executive Order No. 84, March 13, 1999 d.MOA on Interagency Interagency Implementation of the NRPCP

Executive Order No. 84, March 13, 1999

The major function of eosinophils is to: a.Phagocytose bacteria b.Neutralize viruses c.Cause delayed hypersensitivity d.Promote inflammation

Promote inflammation

Which of the following is a common ante-mortem sign of pleuritis in animals? a.Fever is always present b.Abducted elbows c.Purulent or fibrous exudate in pleural cavity d.Carcass condemnation

Abducted elbows

Staphylococcus aureus is associated with the following conditions except: a.Botryomycosis b.Bovine mastitis c.Tick pyemia d.Stuttgart disease

Stuttgart disease

A veterinary clinic is experiencing an outbreak of a disease among its staff, who have been in close contact with dogs recently rescued from a shelter. Among the options, which is most likely to proliferate in this situation? a.Toxoplasmosis b.Q fever c.Brucellosis d.Psittacosis

Brucellosis

Cold enrichment is usually employed in the cultivation of: a.Moraxella bovis b.Listeria monocytogenes c.Bordetella bronchiseptica d.Francisella tularensis

Listeria monocytogenes

During post-mortem exam of a carcass, the sublingual lymph node and spleen have lesions. What would be the decision? a.trim and pass rest of carcass b.condemn affected parts c.condemn entire carcass d.conditionally pass

condemn entire carcass

The enzyme catalase is used by bacteria to break down: a.Starches b.Hydrogen peroxide c.Proteins d.Superoxides

Hydrogen peroxide

If there is fecal contamination of the carcass, what would be the judgment? a.trim and reject affected parts b.total rejection c.fit for consumption d.condemn

Trim and reject affected parts

Ebola virus is under what viral family? a.Bunyaviridae b.Bornaviridae c.Filoviridae d.Arenaviridae

Filoviridae

Which of the following virus is associated with Hendra virus? a.nipah virus b.calivirus c.togavirus d.arterivirus

Nipah virus

Erythritol acts as a growth factor for: a.Brucella b.Salmonella c.Moraxella d.Avibacterium

Brucella

Shiga or shiga-like toxin is produce by what type of E. coli? a.EHEC b.EPEC c.ETEC d.ESEC

ETEC

Which disease control measure is least likely to be applied during an outbreak of viral respiratory disease in horses? a.Isolation b.Quarantine c.Immunization d.Depopulation

Depopulation

Which is not included in the minimum postmortem inspection requirements for animals? a.Tongue b.Ingesta c.Lymph nodes d.Spleen

Ingesta

The transfer of DNA from one bacterium to another aided by sex pili is called: a.Conjugation b.Transduction c.Transformation d.Recombination

Conjugation

Which of the following clotting factor is present in Chocolate agar? a.Factor I b.Factor VII c.Factor V d.Factor III

Factor V

In case of an epizootic anthrax in a farm the following can be done except: a.Affected farms should be quarantined for a period extending 2 weeks past the last death from anthrax b.Perform necropsy of suspected cases c.Decontamination of premises D.Carcasses of animals that died of anthrax be completely burned or buried deeply

Perform necropsy of suspected cases

The aim of the prevention during the clinical phase of the natural history disease is to: a.Prevent exposure b.Prevent emerge of disease c.Early diagnosis and treatment d.Prevent or delay death

Early diagnosis and treatment

The Coomb’s test was designed to: a.Diagnose brucellosis b.Detect RBC antigens c.Detect reaginic antibody d.Detect immune reactants on cells

Detect reaginic antibody

The odds ratio describes the 1)______ of an event 2)_____ compared to the 3)_____ of an event 4)_____. a.1) chance 2) incidence 3) probability 4) incidence b.1) odds 2) occuring 3) odds 4) not occurring c.1) odds 2) incidence 3) probability 4) occurring d.1) odds 2) occuring 3) odds 4) occurring

1) odds 2) occuring 3) odds 4) not occurring

Based on DNA relatedness, the genus Salmonella is comprised of: a.2 species, Salmonella bongori and Salmonella enteritidis b.3 species, Salmonella cholerasuis, S. typhi and S. enteritidis c.2 species, Salmonella enterica and Salmonella bongori d.3 species, Salmonella typhi, S. paratyphi and S. enteritidis

2 species, Salmonella enterica and Salmonella bongori

The Veterinary Health Certificate (VHC) shall be valid for a maximum of: a.24 hours b.3 days, to start counting the following day after its issuance date including Saturdays and Sundays, but not Holidays c.3 days, to start counting immediately on the issuance date including Saturdays, Sundays, and Holidays d.3 days, to start counting the following day after its issuance date including Saturdays, Sundays, and Holidays

3 days, to start counting the following day after its issuance date including Saturdays, Sundays, and Holidays

Which is NOT a mode of transmission of Anthrax? a.Ingestion of undercooked meat b.Inhalation of spores in wool c.Arthropod vector (horseflies) d.Person to person

Person to person

The optichin test is used to identify which species of Streptococcus? a.S. suis b.S. equisimilis c.S. pneumonia d.S. uberis

S. pneumonia

Which antiseptic agent is one of most potent antiseptics because it is bactericidal, virucidal, and fungicidal? a.Chlorhexidine b.Hydrogen peroxide c.Iodine d.Quaternary ammonium compound

Iodine

What is the incubation period of Highly Pathogenic Avian Influenza? a.2-5 days b.14 days c.18 days d.30 days

2-5 days

The CAMP test is used for: a.Staphylococcus aureus b.Streptococcus uberis c.Streptococcus dysgalactiae d.Streptococcus agalactiae

Streptococcus agalactiae

This is often referred to as bacillary dysentery because of bloody diarrhea, tenesmus, fever and nausea that it causes to human. a.Campylobacteriosis b.Colibacillosis c.Salmonellosis d.Shigellosis

Shigellosis

Which of the following is NOT a key component affecting animal welfare in the slaughterhouse? a.Competence of the personnel handling the animals b.Availability of high-quality feed and water during transportation c.Design of premises or facilities to minimize stress d.Proper use of tools that are fit for purpose

Availability of high-quality feed and water during transportation

In the definition of epidemiology, “determinants” generally includes the following EXCEPT: a.Agents b.Causes c.Control measures d.Risk factors

Control measures

Test to determine perfect carcass bleeding a.Wode’s test b.Six-plate tesr c.Malachite Green Test d.Carotene Test

Malachite Green Test

In a region with increasing cases of human psittacosis linked to pet parakeets, which intervention would likely be the most cost-effective for preventing further spread of the disease? a.Implementing mass antibiotic therapy for all affected persons b.Quarantining all pet parakeets in the affected area c.Treating all imported parakeets with antibiotics before distribution d.Conducting public health education campaigns on safe handling of pet parakeets

Treating all imported parakeets with antibiotics before distribution

Which of the following disease is most likely to acquire by a cattle submerged to flood? anthrax hemorrhagic septicemia leptospirosis pink eye

Leptospirosis

What is the source of Salmonella in dressed chicken before slaughtering? a.bird itself b.evisceration area c.feeds d.none of the above

Bird itself

bird itself evisceration area feeds none of the above A cloudy, green colored fluid after Radan’s test would mean that bleeding is: a.Very unsatisfactory (cold-slaughtered) b.Incomplete c.Complete d.Satisfactory

Incomplete

What is the major function of interferon? a.antiviral b.antiprotozoal c.antibiotic d.antifungal

Antiviral

Humans most commonly contract Vibrio vulfinicus from ingestion of: a.Unpasteurized milk b.Contaminated marine shellfish like oysters c.Contaminated meat d.Any of these

Contaminated marine shellfish like oysters

What is the source of Salmonella in dressed chicken after slaughtering? a.bird itself b.evisceration area c.feeds d.none of the above

Evisceration area

Tuberculin test is a diagnostic test used to diagnosed tuberculosis in animals. This is being done by inoculation of mycobacterial antigen via: a.intramuscular b.intradermal c.subcutaneous d.intravenous

Intradermal

What is the virus common in tumors of marine mammals? a.poxvirus b.papillomavirus c.lentivirus d.adenovirus

Papillomavirus

Which of the following is NOT transmitted through consumption of raw or undercooked fish? a.Diphyllobothriasis b.Balantidiasis c.Vibriosis d.Anisakiasis

Balantidiasis

Systemic lupus erythematosus is an example of what type of hypersensitivity? a.Type I b.Type II c.Type III d.Type IV

Type III

Sabouraud’s dextrose agar is a medium used for ___: a.virus b.bacteria c.fungi d.protozoa

Fungi

Concerning Hemophilus parasuis, which statement is least accurate? a.It is the cause of Glasser’s disease b.It is a normal commensal of the pharyngeal mucosa c.It is a small Gram positive bacillus- gram-negative rod d.It is a frequent secondary invader in swine influenza

It is a small Gram positive bacillus- gram-negative rod

Which is not a characteristic of Rickettsia? a.Obligate intracellular parasite b.Grows well on artificial media c.Transmitted by arthropods d.Contain a cell wall

Grows well on artificial media

Q fever: Primary mode of zoonotic transmission a.Ticks b.Raw milk ingestion c.Inhalation d.Direct contact with carcass

Inhalation

Serratia marcescens in blood agar produces: a.Greyish,round and shiny colonies b.Mucoid colonies that coalesce c.Grey,swarming growth over the agar d.Convex,round and shiny colony sometimes produces pigment

Convex,round and shiny colony sometimes produces pigment

Which of the job roles below are field epidemiologists least likely to be involved in: a.Conducting disease surveillance activities b.Managing disease prevention and control programs c.Developing disease models d.Developing herd health programs

Developing disease models

What is the recommended procedure for handling a fetus in the uterus post-slaughter of pregnant animals? a.The fetus should be euthanized immediately b.The fetus should be left undisturbed in utero for at least 30 minutes c.The fetus should be removed from the uterus and left to breathe d.Pregnant animals, no matter the stage of gestation, should neither be transported nor slaughtered.

The fetus should be left undisturbed in utero for at least 30 minutes

Which best defines pathogen pressure in the context of zoonotic spillover risk? a.The mode of pathogen release from reservoir hosts b.The survival of pathogens outside reservoir hosts c.The amount of pathogen available to humans at a specific time and place d.The probability of infection following exposure

The amount of pathogen available to humans at a specific time and place

Which of the following is a morbiliviral infection causing fever, stomatitis and gastroenteritis in artiodactyls? a.Vesicular stomatitis b.Rinderpest c.Malignant catarrhal fever d.Foot and mouth disease

Rinderpest

Which one is a non-oncogenic retrovirus? a.Caprine arthritis-encephalitis b.Bovine leukemia virus c.Rous sarcoma virus d.None of the above

Caprine arthritis-encephalitis

What is the basis for serotyping of Pasteurella multocida? a.Capsule b.Fimbria c.Adhesin d.Flagella

Capsule

The “rough, tough and buff” colonies are characteristics of: a.Mycobacterium tuberculosis b.M. bovis c.M. farcinogenes d.M. avium

Mycobacterium tuberculosis

Lactose is fermented by: a.Escherichia coli b.Salmonella typhimurium c.Corynebacterium diphtheriae d.Proteus vulgaris

Escherichia coli

Contagious equine metritis is a highly contagious venereal disease caused by: a.Brucella abortus b.Taylorella equigenitalis c.Histoplasma farciminosum d.Pseudomonas pseudomallei

Taylorella equigenitalis

Which of the following diseases is caused by gram negative bacteria? a.Anthrax b.Hemorrhagic septicaemia c.Lumpy jaw d.Swine erysipelas

Hemorrhagic septicaemia

Which of the following diseases is caused by gram negative bacteria? a.Anthrax b.Hemorrhagic septicaemia c.Lumpy jaw d.Swine erysipelas

Hemorrhagic septicaemia

Microbiology (All subtopics) Flashcards

(102 cards)