Which disease can clinically resemble Avian Influenza?

Virulent Newcastle Disease (VND) is the correct choice because it is a highly contagious viral infection that affects birds, particularly commercially relevant poultry, and can produce clinical signs that are similar to those observed in Avian Influenza. Both diseases affect the respiratory systems of birds and can cause severe illness characterized by similar symptoms such as respiratory distress, neurological signs, and high mortality rates, making it challenging to differentiate them based solely on clinical symptoms.

In addition, both Avian Influenza and VND can affect the overall health of a flock, leading to significant economic losses in the poultry industry. The symptoms may require specific laboratory tests for accurate diagnosis, emphasizing the overlapping clinical presentations between these two diseases.