In which of the following situations did disease develop due to vertical transmission of the pathogen?

A. A dog develops rabies after being scratched during a fight with a raccoon that carries the virus
B. A hospitalized patient develops MRSA bacteria in a wound following surgery 
C. A traveler develops gastroenteritis after drinking water that is contaminated with Escherichia coli bacteria
D. A fetus develops listeriosis after unpasteurized cheese infected with Listeria bacteria is consumed by the mother during pregnancy


Answer: D

Biology & Microbiology

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a(n)_______.

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