Final answer:
One hindrance to determining the cause of a foodborne illness is that the symptoms may seem like those of the flu. This can make it difficult to connect the symptoms with the food that caused the illness.
Step-by-step explanation:
One hindrance to determining the cause of a foodborne illness is that the symptoms may seem like those of the flu. This can make it difficult to connect the symptoms with the food that caused the illness. For example, both foodborne illnesses and the flu can cause symptoms such as fever, aches, and pains. Without clear distinguishing factors, it becomes challenging to pinpoint the source of the illness.