Which of the following is not caused by a virus?

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Multiple Choice

Which of the following is not caused by a virus?

Explanation:
Think about what type of organism is responsible for each illness. Herpes simplex and most hepatitis infections come from viruses. Gonorrhea is caused by a bacterium. Trichomoniasis is caused by a protozoan parasite called Trichomonas vaginalis. Because it is not a virus, trichomoniasis is the one that fits the prompt. This distinction—virus versus non-viral organisms like bacteria or protozoa—helps you sort these infections quickly: viruses for herpes and many hepatitis cases, bacteria for gonorrhea, and protozoa for trichomoniasis.

Think about what type of organism is responsible for each illness. Herpes simplex and most hepatitis infections come from viruses. Gonorrhea is caused by a bacterium. Trichomoniasis is caused by a protozoan parasite called Trichomonas vaginalis. Because it is not a virus, trichomoniasis is the one that fits the prompt. This distinction—virus versus non-viral organisms like bacteria or protozoa—helps you sort these infections quickly: viruses for herpes and many hepatitis cases, bacteria for gonorrhea, and protozoa for trichomoniasis.

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