Japanese encephalitis vaccination is included in the Universal Immunization Programme for endemic districts of India. Which vaccine and schedule are used?

• A Killed mouse-brain Nakayama strain, three doses starting at 6 weeks
• B Recombinant chimeric vaccine, two doses at 6 and 14 weeks
• C Live attenuated 17D strain, single oral dose at 12 months
• D Live attenuated SA 14-14-2 strain, single subcutaneous dose at 9 to 12 months ✓

Explanation

India uses the live attenuated SA 14-14-2 JE vaccine, given as a single subcutaneous dose at 9 to 12 months, co-administered with the first dose of MR vaccine. It is also delivered through catch-up campaigns for children up to 15 years. The killed Nakayama vaccine required multiple doses and has been abandoned; option C wrongly imports the yellow fever strain name.

Reference: Park's Textbook of Preventive and Social Medicine, 25th ed.

High-yield for: NEET PGINI-CETNExTFMGEUSMLEPLABMRCP

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