In the United States, the classical swine fever surveillance program targets which swine populations?

• A. Sick animals submitted to diagnostic laboratories
• B. Slaughter condemned at slaughter
• C. Swine on farms that feed pig swill (waste-feeding)
• D. All of the above

Answer: (D)

The assessment is about how surveillance for classical swine fever is designed to detect the disease by looking across different, high-risk sources. Sick animals that are submitted to diagnostic laboratories represent passive surveillance: when a physician or veterinarian notices illness, samples are tested to confirm or rule out CSF. Slaughter condemnations provide another routine signal window: carcasses deemed unfit for consumption are inspected and tested, so detections can occur even if there wasn’t a prior suspicion of disease. Farms that feed pig swill (waste-feeding) are a known risk group for introducing CSF, so monitoring and testing in these settings helps catch cases that might arise from that exposure pathway.

Using all of these targets together creates a broad net for early detection, combining clinical signals, routine slaughter surveillance, and high-risk feeding practices. That’s why the comprehensive approach—covering sick animals, condemned slaughter, and swill-feeding farms—is the best match for the program.