When transporting horses across state lines, which disease is mandatory for treatment?

The correct answer is Coggins, which refers to the Coggins test, a blood test used to detect Equine Infectious Anemia (EIA) in horses. This disease is significant because it is highly contagious and can be fatal. The Coggins test is a mandatory requirement for horses traveling across state lines to ensure that they are not carrying the disease.

Regulatory agencies and horse transport companies have implemented this requirement to protect the health of the equine population and prevent outbreaks of EIA, which has no cure and can severely impact the horse industry. A negative Coggins test is essential documentation needed for equine transport across state lines, making it a critical public health measure in the management of equine diseases.

While other diseases like West Nile Virus, Equine Influenza, and Strangles are important and may have their own vaccination recommendations or protocols, they do not have the same mandatory testing requirement for interstate travel as the Coggins test does. This specificity is what makes Coggins the correct choice in this context.