Which illness is linked to undercooked shell eggs?

Salmonellosis is the illness linked to undercooked shell eggs due to the presence of Salmonella bacteria. Shell eggs, particularly those that are not cooked thoroughly, can harbor Salmonella, which can cause foodborne illness when ingested. Symptoms of salmonellosis include diarrhea, fever, and abdominal cramps, typically appearing 6 hours to 6 days after infection.

While Listeriosis, Hepatitis A, and E. coli infections are serious foodborne illnesses, they are associated with other foods. Listeriosis is mainly linked to unpasteurized dairy products and ready-to-eat deli meats. Hepatitis A is often transmitted through contaminated food or water, particularly raw or undercooked shellfish. E. coli is commonly associated with undercooked ground beef and contaminated produce, not eggs. Thus, salmonellosis is uniquely related to the consumption of undercooked shell eggs, making it the correct choice for this question.