Can the yolk and outer shell be infected with Salmonella enteritidis from infected chickens?

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Multiple Choice

Can the yolk and outer shell be infected with Salmonella enteritidis from infected chickens?

Explanation:
Salmonella enteritidis can reach eggs in two main ways from an infected hen. It can travel through the hen’s reproductive tract into the developing egg, which can contaminate the yolk (and the white). It can also contaminate the eggshell surface through the hen’s environment or feces during laying or handling. Because of these routes, an egg can be contaminated inside (yolk/albumen) or on the shell, so both the yolk and the outer shell can harbor the bacteria. This is why safe egg handling and thorough cooking are important to prevent illness.

Salmonella enteritidis can reach eggs in two main ways from an infected hen. It can travel through the hen’s reproductive tract into the developing egg, which can contaminate the yolk (and the white). It can also contaminate the eggshell surface through the hen’s environment or feces during laying or handling. Because of these routes, an egg can be contaminated inside (yolk/albumen) or on the shell, so both the yolk and the outer shell can harbor the bacteria. This is why safe egg handling and thorough cooking are important to prevent illness.

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