KALOJI NARAYANA RAO UNIVERSITY OF
HEALTH SCIENCES
WARANGAL, TELANGANA STATE-506 002
MBBS SECOND YEAR DEGREE
SUPPLEMENTARY EXAMINATIONS: June,

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2025
MICROBIOLOGY
Paper-II
Time: 3 Hours
Max Marks: 100

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Note: Answer all questions
Give Diagrammatic representation wherever necessary
Multiple Choice Questions:
10 X 1 = 10
1. Rheumatic fever usually follows an infection with

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a) Streptococcus pyogenes
c) Staphylococcus aureus
b) Streptococcus viridans
d) Haemophilus influenzae
2. Tissue should be segregated in which colour bag?

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a) Yellow
c) Red
b) Blue
d) Black
3. A farmer presents with upper abdominal mass and a

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positive Casoni's
test, The causative agent is
a) Echinococcus granulosus
c) Ancylostoma duodenale
b) Ascaris lumbricoides

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d) Trichuris trichura
4. Epstein Barr is associated with the all of the following
malignancies
except
a) Burkitt's lymphoma

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c) Nasopharyngeal carcinoma
b) Carcinoma of cervix
d) Non-Hodgkins lymphoma
5. Neonatal meningitis acquired through infected birth
canal is due to:

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a) Viridans Streptococci
c) Streptococcus agalactiae
b) Streptococcus pyogenes
d) Streptococcus pneumonia
6. Biological false positive reaction is:

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a) Positive VDRL test but
negative TPHA
c) Negative RPR test but
positive TPHA
b) Positive RPR test & TPHA

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d) Negative VDRL & TPHA
7. The bivalent HPV vaccine includes the following two

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serotypes:
a) Serotypes 31 & 33
c) Serotypes 45 & 52

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b) Serotypes 16 & 18
d) Scrotypes 6 & 11
8. Which of the following is not a mycobacterial skin
lesion
a) Scrofuloderma

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c) Erysipeloid
b) Fish tank granuloma
d) Buruli ulcer
9. Cutaneous larva migrans is not seen with
a) Ancylostoma brasiliensis

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c) Entamoeba histolytica
b) Ancylostoma duodenale
d) Necator americanus
10. Throat swab is not useful for diagnosis of
a) Streptococcal pharyngitis

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c) Pneumonia
b) Diphtheria
d) COVID-19
Essay/ Long Answer Questions:
2 X 15 = 30

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11. A 50 year old male complains of fever and cough,
with "Rust" colored sputum.
A chest x-ray shows a dense infiltration of the right upper
lobe and pleural

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effusion. Sputum was sent for culture and sensitivity.

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Microscopy shows Gram
positive diplococci with clear halo along with pus cells
seen in Gram stain.
a. What is the probable aetiological agent in the above
case.

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b. Describe the pathogenesis and laboratory diagnosis of
the organism.
c. Write a note on Prophylaxis in Immunocompromised
individuals against
this organism. 3+7+5 = 15

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12. A 38 year old male having multiple sex partners came
to a clinic with pain less
ulcer on penis.
a. What organisms is the likely cause of this disease?
b. Write about the sexually transmitted diseases causing

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Genital Ulcers.
c. Write about lab diagnosis? 2+5+8 = 15
Short Answer Questions:
7 X 6 = 42
13. Lab diagnosis of Mycetoma.

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14. Lab diagnosis and Prophylaxis of Japanese
Encephalitis.
15. Antirabies vaccines.
16. Lab diagnosis of Urinary Tract Infection.
17. Describe the Tetanus Prophylaxis.

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18. A medical intern comes to the Infection control officer
with history of Needle
Stick Injury 1 hour back. The source patient's blood
sample is tested for HIV,
HBV and HCV. Test result shows it is reactive for HIV,

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negative for HBV and
HCV. Medical intern was in panic. What is the role of
Infection control officer
in this situation.
19. Write about primary Complex.

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Very Short Answer Questions:
6 X 3 = 18
20. Etiological agents of Non Gonococcal Urethritis.
21. Name three viruses causing Cancer.
22. Antigenic Drift.

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23. Name three bacterial Zoonotic Diseases.
24. Name three microorganisms which are used as
Bioweapons.
25. National Tuberculosis Elimination Program.
*******

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