Which statement correctly describes the Japanese encephalitis vaccine used in routine immunization in endemic districts of India?
- A Inactivated mouse-brain derived vaccine given in three doses starting at 6 weeks
- B Live attenuated SA 14-14-2 vaccine given as a single subcutaneous dose at 9 to 12 months ✓
- C Recombinant chimeric yellow fever-based vaccine given at birth and 6 weeks
- D Live attenuated vaccine given orally along with OPV doses
Correct answer: B. Live attenuated SA 14-14-2 vaccine given as a single subcutaneous dose at 9 to 12 months
Explanation
India uses the live attenuated SA 14-14-2 strain (manufactured domestically as JEEV or supplied through campaigns) as a single subcutaneous dose, integrated at 9 to 12 months with the MR first dose, and a second opportunity at 16 to 24 months in endemic districts. The mouse-brain inactivated vaccine is obsolete for routine use. There is no oral JE vaccine, and the chimeric vaccine is not part of India's programme.
Reference: Park's Textbook of Preventive and Social Medicine, 26th ed.
High-yield for: NEET PGINI-CETNExTFMGEUSMLEPLABMRCP
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