Final answer:
The piglets in the scenario are likely infected with Taenia solium due to ingestion of contaminated vegetation.
Step-by-step explanation:
Nate's piglets are likely suffering from an infection caused by Taenia solium, which is a tapeworm, rather than a disease directly. The infection occurs through ingestion of contaminated vegetation containing eggs or gravid proglottids of the tapeworm. This aligns with the information provided, indicating that cattle and pigs can become infected in this manner.
The disease that is probably affecting Nate’s piglets in the given scenario is T. solium infection. Cattle and pigs become infected by ingesting vegetation contaminated by eggs or gravid proglottids of T. solium. Since the piglets are showing symptoms, it is likely that they have acquired the infection through the ingestion of contaminated food or water.