Shiga toxin-producing Escherichia coli (STEC) is also known as

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Multiple Choice

Shiga toxin-producing Escherichia coli (STEC) is also known as

Explanation:
Shiga toxin-producing Escherichia coli signals that this organism is a form of Escherichia coli that makes Shiga toxin. The name explicitly identifies the bacterium as E. coli and notes the toxin it produces, which is what defines this group. Shigella spp. is a different genus of bacteria, not Escherichia, so it doesn’t carry this label. Norovirus and Hepatitis A are viruses, not bacteria, so they aren’t related to STEC. Understanding that STEC is a toxin-producing strain within E. coli clarifies why this option is the correct one.

Shiga toxin-producing Escherichia coli signals that this organism is a form of Escherichia coli that makes Shiga toxin. The name explicitly identifies the bacterium as E. coli and notes the toxin it produces, which is what defines this group. Shigella spp. is a different genus of bacteria, not Escherichia, so it doesn’t carry this label. Norovirus and Hepatitis A are viruses, not bacteria, so they aren’t related to STEC. Understanding that STEC is a toxin-producing strain within E. coli clarifies why this option is the correct one.

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