Final answer:
The student's question pertains to the health risks associated with eating raw seafood, such as parasitic infections from fish tapeworms, which can occur with the consumption of sashimi, a popular dish that includes raw fish like salmon.
Step-by-step explanation:
The question regarding 3/5 varieties of sashimis with wasabi and shiso likely relates to the understanding of food safety, particularly within the context of parasitic infections that can be transmitted through raw or undercooked fish. When consuming dishes like sushi and sashimi that often contain raw fish, there is an increased risk of ingesting parasites like the Diphyllobothrium species, commonly referred to as fish tapeworms. While the popularity of these foods continues to rise globally, so does the potential for these health risks. It's notable that undercooked salmon was linked to a rise in Diphyllobothrium infections in British Columbia during the 1970s and early 1980s. Although the number of reported cases in North America has remained low in recent years, there is a suspicion that the incidences are underreported due to the difficulty in identifying the causative agent.