What is the primary bacteria that can be ingested from unwashed eggs?

• A. Salmonella
• B. E. coli
• C. Listeria
• D. Staphylococcus

Answer: (A)

Salmonella is the bacteria most commonly linked to eggs and foodborne illness from unwashed eggs. It can contaminate eggs on the shell or even inside the egg if hens carry the bacteria or if the eggs are exposed to contaminated environments. When eggs are not washed, this surface contamination can transfer to the contents if the eggs are cracked or handled improperly, making ingestion a real risk. Cooking eggs thoroughly and keeping them refrigerated helps kill Salmonella and reduce the chance of illness.

Other bacteria can cause foodborne illness, but they’re not as specifically tied to eggs. E. coli is typically linked to general fecal contamination and isn’t the primary egg-specific risk. Listeria is more commonly associated with ready-to-eat foods like deli meats and soft cheeses. Staphylococcus is often related to improper handling and foods left at room temperature rather than a direct egg risk.