If the person is in a high-risk setting like a restaurant or day care, then we find out what kind of treatment they've been given, if they're on the right antibiotics. In case of say, bacterial meningitis, then we definitely want to find out all the contacts they've had and get those people treated before they get sick.

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It's extremely important to identify an outbreak so you can respond before it spreads to other family members and other contacts.

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