tell me the past year questions from principles of epidemiology in community medicine for 2rd year mbbs university examination
I don't have access to actual university past year question papers - those are specific to individual universities (like NTR, RGUHS, MUHS, Dr. MGR, WBUHS, etc.) and are not in my knowledge base.
However, I can give you the most commonly asked question patterns on Principles of Epidemiology from 2nd year MBBS Community Medicine exams across Indian universities:
Frequently Asked Topics - Principles of Epidemiology
Long Answer Questions (10 marks)
Define epidemiology. Describe the uses and scope of epidemiology.
Describe the epidemiological triad (host, agent, environment) with examples.
What is descriptive epidemiology? Describe the variables of person, place, and time with examples.
Describe the natural history of disease and levels of prevention (Leavell & Clark).
What is analytical epidemiology? Compare case-control and cohort studies with merits and demerits.
Define incidence and prevalence. Describe the relationship between them with formulae.
Short Answer Questions (5 marks)
Iceberg phenomenon in epidemiology
Herd immunity - definition and significance
Case-control study - design and uses
Cohort study vs case-control study
Relative risk and odds ratio
Attack rate and secondary attack rate
Epidemic - types and investigation of an epidemic
Screening - Wilson's criteria
Bias in epidemiological studies
Randomized controlled trial (RCT)
Cross-sectional study
Surveillance - definition and types
Spot map / epidemic curve
Sensitivity and specificity of a screening test
Modes of transmission of disease
Very Short / Definition type (2 marks)
Incubation period
Reservoir of infection
Carrier - types
Zoonosis
Pandemic vs epidemic vs endemic
Point source epidemic
Propagated epidemic
Attributable risk
Crude death rate
CFR (Case Fatality Rate)
Tips to Score Well
Park's Textbook of Preventive & Social Medicine is the standard reference - study epidemiology chapters thoroughly.
Focus on definitions + diagrams (epidemic curve, iceberg, triad).
Memorise formulae for rates and ratios.
Practice drawing and labeling the natural history of disease diagram.
For actual past papers from your specific university, check: