Can you get infected with parasites from eating eel once?

Generally speaking, whether eating eel once can lead to parasitic infection depends on whether the eel is fully cooked. Consuming raw or undercooked eel may result in parasitic infection, whereas thoroughly cooked eel typically does not pose such a risk. If noticeable physical discomfort occurs after eating eel, prompt medical attention is recommended. Detailed analysis is as follows:

1. Yes

If eels grow in polluted or untreated water sources, they may absorb parasite eggs or cysts. Eating raw or undercooked eel that contains parasite eggs or cysts could lead to parasitic infection even after just one meal.

2. No

If the eel is thoroughly cooked, high temperatures effectively kill parasite eggs, cysts, and adult parasites, making it generally safe from parasitic infection even with a single serving. Additionally, practicing proper food safety measures during food preparation and consumption—such as handwashing, washing ingredients, and using clean cooking utensils and tableware—can further help prevent parasitic infections.

In summary, if you wish to eat eel, it is recommended to cook it thoroughly before consumption to avoid the risk of parasitic infection.