Final answer:
Hepatitis A virus (HAV) is associated with both ready-to-eat food and shellfish from contaminated water.
Step-by-step explanation:
The virus that is associated with both ready-to-eat food and shellfish from contaminated water is hepatitis A virus (HAV).
Hepatitis A is a highly contagious virus that can cause inflammation of the liver. It is commonly transmitted through contaminated food or water. Ready-to-eat foods, such as leafy greens, fresh fruits, and shellfish from contaminated water, can all act as potential sources of HAV infection.
For example, if shellfish, like oysters, come from water that is contaminated with HAV, consuming those shellfish raw can lead to HAV infection. Similarly, if a food handler who is infected with HAV does not properly wash their hands after using the bathroom and then handles ready-to-eat food, that food can become contaminated with the virus.