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Biology, 29.06.2019 10:20 millie54

After learning that 40 hospital employees developed nausea and vomiting , the hospital infection control officer determined that 39 ill people ate green beans in the hospital cafeteria, compared to 34 healthy people who ate in the cafeteria the same day buy did not eat green beans in the hospital cafeteria , what type of epidemiology is this?

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