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Salmonella are rod-shaped, gram-negative bacteria that typically measure about 0.7 to 1.5 micrometers in width and 2 to 5 micrometers in length. They possess a thin peptidoglycan layer surrounded by an outer membrane, which contains lipopolysaccharides. Salmonella are motile due to the presence of flagella, allowing them to swim in liquid environments. Additionally, they have a capsule that can contribute to their virulence by protecting them from the host's immune response.

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2mo ago

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