A rural village experiences a sudden outbreak of cholera. Medical investigators trace the source back to a local well contaminated by overflowing sewage. How is cholera scientifically classified?

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A A vector-borne disease spread by mosquitoes.
B A water-borne disease caused by ingesting pathogenic bacteria.
C A nutritional deficiency disease caused by lack of clean proteins.
D A water-washed disease caused by insufficient personal hygiene.

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Answer: B. A water-borne disease caused by ingesting pathogenic bacteria.

Answer Explanation: B. Cholera is a classic water-borne disease caused by the bacterium Vibrio cholerae. It spreads when people consume water or food contaminated by the feces of an infected person.

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A rural village experiences a sudden outbreak of cholera. Medical investigators trace the source back to a local well contaminated by overflowing sewage. How is cholera scientifically classified?

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