What is the specified size of the "infected zone" when an FAD is detected?

The "infected zone" refers to the area surrounding a detected case of a foreign animal disease (FAD) where further surveillance, monitoring, and control measures are implemented to prevent the spread of the disease. The correct answer is 3 km, which is established based on epidemiological studies and expert recommendations to ensure that potential spread is adequately contained.

This specified size allows for thorough investigation and response efforts, as FADs can propagate through various vectors, including wildlife, domestic animals, and even human activity. The 3 km radius ensures that affected and potentially affected animals are identified and managed effectively, minimizing the risk of wider outbreaks.

Control measures within this zone may include culling of infected or at-risk animals, strict movement controls, and enhanced biosecurity protocols. The decision to utilize a 3 km radius strikes a balance between effective disease management and the impact of control measures on local animal production and livelihoods.