Salmonella in Eggs: Where is It?

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Salmonella can be present in all parts of a chicken egg, including the shell, egg white, and yolk. This is due to the bacteria's ability to infect the hen's oviduct, leading to contamination throughout the egg. Initial assumptions that salmonella would only be on the shell were corrected, emphasizing the importance of understanding the potential for widespread contamination within the egg itself.
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Suppose a chicken egg is contaminated with salmonella. Is the bacteria on the outside of the shell, in the white part, in the yolk, or all parts?
 
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Junior GF told me she would expect it to be only on the shell, both inside and outside. Don't treat this information as absolute truth as she was not 100% sure, but she finished Warsaw University of Life Sciences and these things were part of curriculum, so even if she partially guessed that's an educated guess :smile:

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I could edit, but if someone has seen the answer would miss the edit. First answer was wrong - she checked details. Salmonella can colonize/infect oviducts, so it can be found everywhere, not only on the shell but both in yolk and white.

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