2023 P2 Q112
Q1. Which of the following statements are correct regarding Chikungunya fever?
1. It is usually transmitted by Culex mosquito.
2. A safe and effective vaccine is available for commercial use.
3. Incubation period is 4–7 days.
4. One of the prominent symptoms is arthropathy.
Select the correct answer using the code:
- 1 and 2 only
- 2 and 3 only
- 3 and 4 only
- 1 and 4 only
Answer & explanation — reveal it in the interactive practice above.
PYQ 2020–2025 — page 272
2024 P2 Q89
Q2. Consider the following statements regarding dengue virus:
1. It has four distinct serotypes.
2. Infection with any one serotype confers lifelong immunity for that virus serotype.
3. Secondary infection with dengue serotype 2 leads to severe form of dengue.
Which of the statements given above are correct?
- 1 and 2 only
- 2 and 3 only
- 1 and 3 only
- 1, 2 and 3
Answer & explanation — reveal it in the interactive practice above.
PYQ 2020–2025 — page 352
2024 P2 Q90
Q3. Consider the following statements regarding dengue:
1. The mosquito becomes infective after an extrinsic incubation period of 8–10 days.
2. Once it becomes infective, the mosquito remains infective for life.
3. The genital tract of the mosquito does not get infected.
Which of the statements given above are correct?
- 1 and 2 only
- 2 and 3 only
- 1 and 3 only
- 1, 2 and 3
Answer & explanation — reveal it in the interactive practice above.
PYQ 2020–2025 — page 352
