Shellfish contamination primarily poses a risk of which disease?

The correct response is that shellfish contamination primarily poses a risk of Hepatitis A. Shellfish, especially filter feeders like clams, mussels, and oysters, can accumulate harmful pathogens, including viruses, from their surrounding environment, particularly in polluted waters.

Hepatitis A is a viral infection that affects the liver and is often transmitted through the consumption of contaminated food and water. In the case of shellfish, the virus can survive in the seafood even after cooking if proper hygiene and handling practices are not followed. When individuals consume raw or undercooked shellfish contaminated with Hepatitis A, they are at risk of infection.

Although other diseases such as cholera and norovirus can also be associated with shellfish contamination, hepatitis A is particularly well-known for its link to the consumption of contaminated shellfish in polluted waters.