Where is VND typically found?

Viral Neurotropic Disease (VND), often associated with viruses affecting the nervous system, is typically found worldwide. This global distribution means that the disease does not limit itself to specific geographic areas or climates, which is why the correct answer indicates that VND can be found in various regions across the globe.

The other options suggest more restricted locations. For instance, stating that it's found only in North or South America would imply a geographical limitation that is not supported by the breadth of its impact. Additionally, the notion of VND being confined solely to tropical regions overlooks its presence in temperate zones as well. By recognizing that the disease is not restricted to any one area, it becomes clearer that its effects are a global health concern.