VPH Quiz 31 Quiz InstructionsThis quiz consists of 20 multiple-choice questions.You will be awarded 5 marks for each correct answer. Question 1: Which of the following is the drug of choice for treating Erysipeloid (erysipelas) in humans, though other options like tetracyclines are also effective?StreptomycinChloramphenicolPenicillinMetronidazole Question 2: What are the predominant serotypes of Leptospira interrogans distributed among domestic animals in India?L. pomona and L. tarassoviL. hebdomadis and L. semarangaL. hardjo and L. grippotyphosaL. icterohaemorrhagiae and L. canicola Question 3: While almost all warm-blooded animals show susceptibility to Glanders, which of the following groups of animals are notable exceptions that do not contract the disease?Dogs, cats, and sheepCows, pigs, and pigeonsGoats, camels, and ferretsHorses, mules, and donkeys Question 4: Helicobacter pylori, previously classified under the genus Campylobacter, was assigned its own genus in 1989. What are its primary microbiological characteristics?A rapidly growing, obligate aerobic, straight rod with peritrichous flagellaA slow-growing, strictly microaerophilic, spiral bacterium with a polar flagellumA fast-growing, facultatively anaerobic, coccobacillus with lateral flagellaA slow-growing, strictly anaerobic, sporeforming rod without flagella Question 5: The acute form of canine leptospirosis, also known as "stuttgart disease", is clinically characterized by which of the following manifestations?Persistent dry cough, purulent nasal discharge, and corneal opacityVomiting, rapid dehydration, collapse, and necrosis and sloughing of the buccal mucosaRecurrent ophthalmia, hind-limb paralysis, and retention of urineChronic polyarthritis, submaxillary lymph node swelling, and alopecia Question 6: In the history of Glanders in India, who was the veterinary pathologist at Punjab Veterinary College, Lahore, that contracted the disease during an autopsy and underwent 45 operations before passing away?Dr. SainbelDr. S.H. GaigerDr. WarrenDr. Marshall Question 7: Listeria monocytogenes is a small, Gram-positive, nonsporulating rod. Which characteristic motility is displayed by this pathogen, and at what temperature is it typically demonstrated?Cork-screw rotation at 37°CGliding motility at 4°CTumbling motility at or around 25°CDarting motility at 42°C Question 8: Which of the following is considered the primary natural reservoir of Helicobacter pylori, although other animals are susceptible and cats are suspected zoonotic transmitters?Canine gastric mucosaPorcine gastric juicesHuman gastric mucosaFeline bile duct Question 9: In swine, the mild, urticarial form of Erysipelas is characterized by the eruption of slightly swollen, deep red or violet quadrangular or rhombic skin patches. What is the common name for this clinical presentation?Farcy budsStuttgart diseaseDiamondsRed eye Question 10: How soon does the characteristic pruritic, purplish-red patch with a raised margin typically appear around the site of injury in the cutaneous form of human erysipeloid?Within 1 to 2 hoursWithin 12 to 48 hoursWithin 5 to 7 daysWithin 2 to 3 weeks Question 11: Match the following Leptospira serovars (Column I) with their most commonly associated maintenance hosts (Column II) as per epidemiological distributions:Column I:1. L. icterohaemorrhagiae2. L. grippotyphosa3. L. hardjoColumn II:i. Cattle and sheepii. Ratsiii. Field miceChoose the correct matching option:1-ii, 2-iii, 3-i1-i, 2-ii, 3-iii1-iii, 2-i, 3-ii1-ii, 2-i, 3-iii Question 12: Match the veterinary or zoonotic clinical terms in Column I with their associated causative pathogens in Column II:Column I:1. Stuttgart disease2. "Diamonds" (skin lesions)3. Farcy budsColumn II:i. Pseudomonas malleiii. Erysipelothrix rhusiopathiaeiii. Leptospira interrogansChoose the correct matching option:1-i, 2-ii, 3-iii1-iii, 2-ii, 3-i1-ii, 2-iii, 3-i1-iii, 2-i, 3-ii Question 13: Match the diagnostic tests or culture media (Column I) with their respective descriptions or target pathogens (Column II):Column I:1. Strauss test2. Mallein test3. Biopsy urease test4. Fletcher's mediumColumn II:i. Intradermal injection in the lower eyelid of equinesii. Leptospira cultivation using serum-containing mediumiii. Intraperitoneal inoculation of male guinea pigs causing scrotal swellingiv. Breath analysis of CO2 tagged with carbon isotope in humansChoose the correct matching option:1-iii, 2-i, 3-iv, 4-ii1-i, 2-iii, 3-ii, 4-iv1-iii, 2-ii, 3-iv, 4-i1-iv, 2-i, 3-iii, 4-ii Question 14: Match the serological or diagnostic tests for Glanders (Column I) with their reported accuracy or sensitivity characteristics in animals (Column II):Column I:1. Complement Fixation Test (CFT)2. Micro Indirect Haemagglutination (IHA)3. Conglutinating Complement Absorption Test (CCAT)Column II:i. 85% accurateii. 90-95% accurateiii. Said to be the most sensitive testChoose the correct matching option:1-ii, 2-i, 3-iii1-i, 2-ii, 3-iii1-iii, 2-ii, 3-i1-ii, 2-iii, 3-i Question 15: Evaluate the following statements regarding the clinical course of human Leptospirosis:I. The early leptospiremic phase is characterized by the presence of the pathogen in blood and cerebrospinal fluid (CSF).II. In the second or immune phase, conjunctival suffusion, also known as "red eye", is a constant and characteristic feature.III. Most of the cases (90%) progress to the severe Weil's syndrome regardless of early treatment.Which of these statements are correct?I and II onlyII and III onlyI and III onlyI, II, and III Question 16: Study the following statements regarding the genus Listeria as described in the text:I. Listeria monocytogenes is an opportunistic pathogen in both human beings and various animal species.II. Listeria ivanovii affects only animals, mainly ruminants, as a cause of abortion, and has no reported public health impact on humans.III. All thirteen recognized serovars of L. monocytogenes can cause human listeriosis, but serovars 1/2a, 1/2b, and 4b are associated with the majority of cases.Which of the statements are correct?I and II onlyI and III onlyII and III onlyI, II, and III Question 17: Consider the following statements about the transmission of Erysipelothrix rhusiopathiae:I. Ingestion of contaminated fish meal is the primary source of infection in swine.II. In sheep, infections commonly occur through docking, castration wounds, or the umbilicus.III. Human-to-human transmission is a frequent cause of localized epidemics of erysipeloid.Which of these statements are correct?I and II onlyII and III onlyI and III onlyI, II, and III Question 18: Assertion (A): Antibiotic treatment is not advocated or shown to help in human infections with Shiga-like toxin-producing Escherichia coli (SLTEC).Reason (R): The ability of antimicrobials to prevent or control SLTEC infection remains unclear, and oral rehydration solution in wholesome water is the primary means to prevent dehydration deaths.Both A and R are true, and R is the correct explanation of A.Both A and R are true, but R is not the correct explanation of A.A is true, but R is false.A is false, but R is true. Question 19: Assertion (A): The therapeutic treatment of clinical cases of Glanders in horses, mules, and donkeys is not advocated.Reason (R): Pulmonary glanders usually becomes latent, rendering such treated animals as potential silent sources of infection for other equines and humans.Both A and R are true, and R is the correct explanation of A.Both A and R are true, but R is not the correct explanation of A.A is true, but R is false.A is false, but R is true. Question 20: During the execution of the standard Microscopic Agglutination Test (MAT) for Leptospirosis, what is the correct sequential order of preparation and interpretation criteria required?I. Filter the test serum through a 0.22 μ membrane filter.II. Heat the serum at 56°C for 20 minutes to inactivate complement.III. Mix equal volumes of serum dilutions and a 4-14 days old Leptospira culture of density 1-2x10^8 organisms/ml.IV. Examine under a dark-field microscope to identify the dilution showing at least 50% agglutination or lysis.I -> II -> III -> IVII -> I -> III -> IVI -> III -> II -> IVII -> III -> I -> IV
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