GROUP – B (SAQ-10 MARKS) 1. There is a sudden surge of cases of fever with rash among under-five children in a block for the past one week. Which surveillance system is related to this case? Describe the steps of investigation of such occurrences when flagged as outbreaks. Mention control measures that should be instituted. (1+6+3=10) [MsdMCH] 2. Cases of adverse events following immunization (AEFI) are being reported from sub centers of a Block. Due to apprehensions among people, drop outs for immunization are also being increased. How the AEFI are classified — mention with examples. Describe important health managerial functions need to be undertaken to address and overcome the problems in that Block. (5+5=10) [MldMCH] 3. Write the National Immunisation schedule for an infant mentioning age, dose, route and site of administration. Discuss in brief the current strategies of Eradication of Poliomyelitis. (6+4=10) [KPC] 4. As a public health personnel, how you will investigate an outbreak of food poisoning in a hostel. [MJNMCH] 5. Several cases of fever, runny nose, red eyes and rashes all over the body among under-five children were reported from an urban slum of Kolkata. As the municipal health officer of that area, how will you investigate and control the outbreak? (5+5) [DMGMCH] 6. A retrospective cohort study was conducted among 2,000 factory workers to assess the association between exposure to silica dust and development of silicosis. • Define Relative Risk (RR). (1 Mark) • Mention two advantages of a cohort study. (1 Mark) • Calculate RR from the following data and interpret the result. (2 Marks) Exposure status Silicosis Asbestosis Exposed 120 680 Non exposed 30 1170 7. Define epidemic. What are the different types of epidemics? Mention briefly epidemiological investigation of rash & fever in children in a block in Howrah district.(2+2+6) [CNMCH] 8. In block 'X', several children aged 5-10 years were brought to nearest health facility with acute onset of fever, loss of appetite, nausea, and yellowish discoloration of the eyes and skin over a period of two weeks after a village fair with several stalls of fast foods like 'fuchka', 'velpuri', 'jhalmuri' etc. Name the most probable diagnosis? Outline the steps of investigation of this outbreak and the control measures to be adopted. What measures would you recommend to prevent the recurrence of such outbreaks? (2 + 5 + 3) [CMSDH] 9. What do you mean by Control, Elimination and Eradication of a Disease? Discuss objectives, target population, strategies for implementation, and role of MR (Measles/Rubella) campaign in achieving measles elimination and Rubella/CRS control. (3 + 1 + 3 + 3 = 10) [PCSGMCH] 10. You want to compare the effect of two drugs in treatment of hypertension. What will be the appropriate study design? Describe the steps will you follow in the study. What are the biases may arise in this study and how will you control those biases? (1+6+3 = 10) [IQCITY] 11. Enumerate the various modes of transmission of communicable disease. Describe any three different modes with suitable examples. (4 + 6 = 10) [ESIC JOKA] 12. Define bias. Explain the concept of confounding factor with a suitable example. Describe any three criteria for judging causal association of disease in epidemiology. (2 + 2 + 6 = 10) [ESIC JOKA]
| Q | Topic | Key Answer Points |
|---|---|---|
| Q1 | Fever with rash + IDSP + Outbreak investigation | IDSP/EWARS surveillance; 8 steps of Park's outbreak investigation; control via ORI + Vitamin A |
| Q2 | AEFI classification + Management | WHO 5-category causality classification; severity classification; 6 managerial functions |
| Q3 | National Immunization Schedule + Polio eradication | Complete infant schedule table (birth to 9 months); 6 polio eradication strategies |
| Q4 | Food poisoning outbreak in hostel | Common-source investigation; food-specific attack rates; incubation period to identify agent |
| Q5 | Measles in urban slum (Kolkata) | Measles diagnosis; propagated epidemic curve; ORI + Vitamin A as control |
| Q6 | RR calculation (silica-silicosis cohort) | RR = 6.0 (120/800 ÷ 30/1200); strong causal association |
| Q7 | Epidemic definition + types + investigation | Common-source vs propagated; 3 geographic types; applied investigation steps |
| Q8 | Hepatitis A after village fair | Diagnosis + 2-4 week incubation; food-specific attack rates; Hep A vaccine for prevention |
| Q9 | Control/Elimination/Eradication + MR campaign | Precise WHO definitions; MR campaign's role in measles elimination and CRS control |
| Q10 | Drug comparison RCT | Double-blind RCT; CONSORT steps; 5 biases with controls |
| Q11 | Modes of transmission | Direct (droplet), Vehicle-borne (water/food), Biological vector (malaria in Anopheles) |
| Q12 | Bias + Confounding + Causal criteria | Bradford Hill's criteria: Strength, Consistency, Temporality + confounding example (coffee-smoking-lung cancer) |