Download DNB 2019 June MICROBIOLOGY MICROBIOLOGY PAPER 1 Question Paper

Download Diplomate in National Board (DNB) 2019 June MICROBIOLOGY MICROBIOLOGY PAPER 1 Previous Question Papers

FINAL EXAM NATIONAL BOARD OF EXAMINATIONS
JUNE 2019
MICROBIOLOGY
PAPER-l
Time: 3 hours MICRO/J/19/18/I
Max. Marksz100
Important Instructions:
Attempt all questions in order.
Each question carries 10 marks.
Read the question carefully and answer to the point neatly and legib/y.
Do not leave any blank pages between two answers.
Indicate the question number correctly for the answer in the margin space.
Answer all the parts of a single question together.
Start the answer to a question on a fresh page or leave adequate space between two answers.
Draw table/diagrams/f/owcharts wherever appropriate.
Write short notes on:
1 .
10.
Define human microbiome. Write in short about its composition 2+3+5
and role in Microbiology.
Define virulence and pathogenicity. Briefly write about the (2+2)+6
methods of determining virulence of a microorganism.
Define antiseptics and disinfectants. Enumerate the sterilizing (1+1)+3+5
disinfectants used in hospital practice. Enumerate the factors
that affect efficacy of disinfection.
Define catheter related blood stream infections (CRBSI) and (2+2)+6
central line associated blood stream infections (CLABSI). Write
in short about the laboratory diagnosis of CRBSI.
What is viable but non-culturable (VNC) state of bacteria? 2+4+4
Mention in short the significance of VNC state of bacteria in
epidemiology and management of bacterial infections.
Enumerate the mechanisms of genetic variation in bacteria. 3+3+4
Write a short note on mobile genetic elements and their role in
antimicrobial resistance.
Define pathogen associated molecular patterns (PAMPs) and 2+2+6
tolI-Iike receptors (TLRs). Write a short outline of their role in
immunity.
Draw a labelled diagram of the structure of secretory 5+5
immunoglobulin A (IgA) and write about its role in mucosal
immunity.
What is major histocompatibility complex (MHC)? What is its 4+6
role in antigen recognition and presentation?
Define cytokines and chemokines. Discuss the pathogenesis of 2+2+6
immune reconstitution inflammatory syndrome (IRIS).
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POSSESSION/USE OF CELL PHONES OR ANYSUCH ELECTRONIC GADGETS IS NOT PERMITTED INSIDE THE EXAMINATION HALL.