During an immunisation outreach camp in a slum area of Delhi, a health worker identifies a 9-month-old child who has received no vaccinations so far. The child is clinically healthy with no fever or signs of acute illness. The mother is concerned about giving multiple vaccines at once. What is the most appropriate next step?

Explanation

## Immunisation of Unvaccinated Children — UIP Protocol **Key Point:** Multiple vaccines can and **should** be administered at a single visit to an unvaccinated child, provided there are no contraindications. Delaying or spacing vaccines unnecessarily increases the risk of vaccine-preventable disease outbreaks. ### UIP Catch-Up Immunisation Strategy When a child presents with **zero prior vaccinations**, the UIP recommends: 1. **Administer all age-appropriate vaccines at the first visit** (or over 2–3 visits if logistically necessary, but not spaced by weeks). 2. **No need to space inactivated and live vaccines** — they can be given simultaneously at different anatomical sites. 3. **Follow an accelerated catch-up schedule** to complete the primary series as quickly as possible. 4. **Parental counselling** to address vaccine hesitancy and myths about multiple injections. ### Vaccines Due at 9 Months (Unvaccinated Child) | Vaccine | Route | Site | | --- | --- | --- | | **BCG** | Intradermal | Left upper arm | | **DPT-1** | Intramuscular | Right anterolateral thigh | | **IPV-1** | Intramuscular | Right anterolateral thigh (same site as DPT) | | **PCV-1** | Intramuscular | Left anterolateral thigh | | **OPV-1** | Oral | Oral | **High-Yield:** All vaccines can be administered at the same visit using different injection sites. There is **no evidence** that multiple vaccines increase adverse effects when given at different anatomical locations. ### Why Spacing Vaccines Is Harmful **Warning:** Spacing vaccines over weeks or months: - Delays protection during a critical window of vulnerability. - Increases the likelihood of default and loss to follow-up. - Prolongs the period of susceptibility to vaccine-preventable diseases. - Is **not recommended** by WHO, IAP, or the UIP. **Clinical Pearl:** Parental anxiety about multiple injections is common but should be addressed through **health education**, not by deferring vaccines. A single visit with multiple injections is preferable to repeated visits and missed doses. ### Addressing Parental Concerns **Mnemonic:** **SAFE** — **S**afe to co-administer, **A**ll vaccines at one visit, **F**ewer missed doses, **E**arlier protection. - Explain that vaccines are given at different sites to prevent local reactions. - Emphasize that delaying vaccines increases disease risk. - Reassure that adverse effects from multiple vaccines are rare and no more common than with single vaccines. - Document parental counselling in the immunisation record.