**Question:** UNICEF provides all service except -

A. Immunization
B. Nutrition
C. Emergency response
D. Infectious disease control

**Core Concept:** United Nations Children's Fund (UNICEF) primarily focuses on child-related issues, such as nutrition, immunization, education, and health care. Although UNICEF collaborates with various organizations to address global health challenges, its main areas of work are not related to infectious disease control or emergency response.

**Why the Correct Answer is Right:**
UNICEF primarily focuses on child-related issues, which include nutrition, immunization, education, and health care. The correct answer (D) is right because infectious disease control falls under the responsibility of other UN agencies, such as the World Health Organization (WHO) and the World Bank.

**Why Each Wrong Option is Incorrect:**
A. Immunization: UNICEF supports immunization programs but does not solely focus on it.
B. Nutrition: Although UNICEF addresses nutrition issues, it is not the sole organization responsible for this aspect.
C. Emergency response: This role primarily falls under the responsibility of the International Red Cross and Red Crescent Movement.

**Clinical Pearl / High-Yield Fact:**
The distinction between UNICEF and other organizations like WHO, Red Cross, and the World Bank is crucial for understanding the division of responsibilities in global health initiatives. This helps avoid confusion and ensures resources are directed to the appropriate organizations to effectively tackle health challenges worldwide.

**Correct Answer:** D. Infectious disease control