What is the name of the decision matrix used in the context of IHR?

The correct choice refers to Annex 2, which is the decision matrix used in the context of the International Health Regulations (IHR). This annex provides a systematic approach to assessing public health events that might constitute a public health emergency of international concern. The decision matrix helps health authorities determine if an event requires further evaluation and if it should be reported under the IHR. The structured criteria outlined in Annex 2 serve as a guideline for decision-making in relation to international health safety, ensuring consistent and standardized responses to potential health threats.

Understanding the role of Annex 2 is essential for those involved in public health decision-making, particularly in how they assess and respond to situations that could impact global health.