What is one of the IHR Core Principles concerning international travel?

The principle of avoiding unnecessary interference with international traffic and trade is crucial for maintaining the flow of goods and people across borders, especially during public health emergencies. This concept is rooted in the International Health Regulations (IHR), which aim to protect global health while promoting the exchange of goods and people.

By minimizing disruptions to international travel and commerce, countries can effectively manage health risks without imposing excessive restrictions that could hinder economic stability and societal functioning. This balance is particularly important because overly stringent measures can lead to unintended consequences, such as diplomatic tensions and economic hardships, while still allowing for necessary protections against health threats.

The other options do not align with the core principles of the IHR as effectively. While enhancing trade opportunities and reducing travel costs are relevant to international commerce, they do not directly address the health considerations outlined in the IHR. Enforcing strict travel restrictions contradicts the principle of minimizing unnecessary interference, as it can lead to excessive barriers that are not warranted by the health risks at hand.