Transboundary Emerging and Exotic Animal Disease/ Exotic Animal Disease Practice Exam

Which tick species requires immediate reporting upon discovery in the United States?

1. Amblyomma variegatum

2. Amblyomma maculatum

3. Amblyomma dissimile

4. None of the above

The correct answer is: Amblyomma variegatum

Amblyomma variegatum, commonly known as the tropical cattle tick, is a species of significant concern because it is a known vector for various pathogens that can cause severe diseases in livestock and other animals, including theileriosis and ehrlichiosis. The presence of this tick species in the United States could indicate an imminent risk for the introduction or reintroduction of these pathogens, which could lead to serious economic and health impacts on livestock. Immediate reporting is essential as it allows authorities to take swift action to monitor and control the spread of the tick. This helps prevent outbreaks and protects both animal and human health. By promptly addressing the discovery of Amblyomma variegatum, the aim is to implement appropriate measures, such as quarantine or eradication efforts, to manage the potential risks associated with its presence. In contrast, other species mentioned, like Amblyomma maculatum and Amblyomma dissimile, do not carry the same level of concern in the context of disease transmission or ecological impact within the United States. Therefore, while they may be monitored, they do not require the same immediacy in reporting as Amblyomma variegatum does.