A health worker in a rural PHC is counselling parents on the Universal Immunisation Programme. All of the following vaccines in the UIP schedule are live attenuated vaccines EXCEPT:

Explanation

## Correct Answer Analysis **Key Point:** This question tests the distinction between live attenuated and inactivated vaccines in the UIP schedule. ### Why Option 4 is CORRECT (the exception) Hepatitis B vaccine is an **inactivated (killed) vaccine**, not live attenuated. It is produced by recombinant DNA technology or plasma-derived methods and contains no replicating viral particles. ### Live Attenuated Vaccines in UIP (Options 1, 2, 3) | Vaccine | Type | Schedule | Notes | |---------|------|----------|-------| | **RV** | Live attenuated (oral) | 6, 10, 14 weeks | Rotavirus; oral route | | **OPV** | Live attenuated (oral) | 6, 10, 14 weeks + 18 mo booster | Poliovirus; oral route | | **MR** | Live attenuated (injected) | 9 mo, 16–24 mo | Measles & rubella; IM route | | **Hepatitis B** | **Inactivated** | Birth, 6, 10, 14 weeks | **NOT live**; recombinant | **High-Yield:** Hepatitis B is the **only inactivated vaccine** in the core UIP schedule. All others are live attenuated. This is a classic NEET PG discriminator. **Mnemonic:** **ROAM** = **R**otavirus, **O**PV, **A**MMR/MR = **M**easles are all **Live**. Hepatitis B is **Inactivated**. **Clinical Pearl:** Live vaccines have contraindications in immunocompromised children (e.g., HIV with CD4 <200), whereas inactivated vaccines are safe. Hepatitis B's inactivated nature makes it suitable for all populations, including immunocompromised infants. [cite:Park 26e Ch 7]