What food is typically linked to Trichinella spiralis infection?

Trichinella spiralis is a parasitic roundworm that is primarily associated with the consumption of undercooked or raw pork. When pork is infected with larvae of Trichinella, and someone consumes the undercooked meat, those larvae can develop into adult worms in the intestines. This leads to a condition known as trichinosis, characterized by various symptoms, including gastrointestinal issues and muscle pain.

Pork is particularly linked to this infection because the life cycle of Trichinella spiralis involves pigs, which can become infected through consuming contaminated feed containing the larvae. While it is important to properly cook all meats to avoid the risk of foodborne illnesses, the specific association of Trichinella spiralis with undercooked pork is well-established in epidemiological studies and food safety guidelines. This is why undercooked pork is identified as the correct answer regarding foods linked to this parasitic infection.