The treatment for a horse infected with African horse sickness in the United States is:

The treatment for a horse infected with African horse sickness in the United States is:

• A. Antibiotics
• B. Antiserum
• C. Rest and supportive care only
• D. No treatment, the animal would be euthanized

Answer: (D)

The key idea here is that African horse sickness (AHS) has no curative treatment for infected horses, and in the United States the recommended course of action is euthanasia to prevent suffering and stop the potential spread of the virus. AHS is a viral disease caused by an orbivirus transmitted by Culicoides midges. There is no antiviral therapy that reliably cures the illness. Antibiotics do not treat the virus itself (they only address secondary bacterial infections, if any). Antiserum or immune serum is not a standard or practical treatment for AHS in horses, and rest with supportive care alone is unlikely to change the outcome in severe cases given the high mortality associated with the disease. In the U.S., where AHS is not endemic, an infected horse represents a biosecurity risk to other horses and wildlife, so humane euthanasia (followed by proper disposal and quarantine measures) is the prudent actions to prevent further transmission and reduce animal suffering. So the best approach is euthanasia, as there is no effective treatment to cure or control the disease once infection is established.

The key idea here is that African horse sickness (AHS) has no curative treatment for infected horses, and in the United States the recommended course of action is euthanasia to prevent suffering and stop the potential spread of the virus.

AHS is a viral disease caused by an orbivirus transmitted by Culicoides midges. There is no antiviral therapy that reliably cures the illness. Antibiotics do not treat the virus itself (they only address secondary bacterial infections, if any). Antiserum or immune serum is not a standard or practical treatment for AHS in horses, and rest with supportive care alone is unlikely to change the outcome in severe cases given the high mortality associated with the disease. In the U.S., where AHS is not endemic, an infected horse represents a biosecurity risk to other horses and wildlife, so humane euthanasia (followed by proper disposal and quarantine measures) is the prudent actions to prevent further transmission and reduce animal suffering.

So the best approach is euthanasia, as there is no effective treatment to cure or control the disease once infection is established.