What are the key manifestations of EHV?

The correct answer highlights the key manifestations of Equine Herpesvirus (EHV), which primarily affect the respiratory system, neurological functions, and reproductive health of horses.

EHV commonly presents with respiratory symptoms, such as coughing, nasal discharge, and fever, especially in younger horses or those under stress. The neurological manifestation can lead to serious conditions, including EHV-1-induced myeloencephalopathy, which causes ataxia, incoordination, and sometimes paralysis. Reproductive issues are particularly concerning with EHV-1, as it can lead to abortions in pregnant mares, making understanding these three manifestations essential for diagnosis and management in equine health.

Other options present combinations of symptoms that do not accurately reflect the primary concerns associated with EHV. For example, while digestive issues may occur in some equine diseases, they are not characteristic of EHV. Similarly, cardiovascular and endocrine symptoms are not prominently associated with the infection, and while musculoskeletal or sensory issues may arise in various conditions, they are not typical manifestations of EHV. Understanding the key manifestations helps in prompt identification and management of the disease, crucial for protecting equine populations.