Explain the key steps involved in the investigation of an outbreak.

Investigating an outbreak requires a systematic and well-coordinated approach to identify the cause, prevent further spread, and manage the response effectively. The key steps involved in investigating an outbreak typically include the following:

1. Detection and Confirmation: The first step in an outbreak investigation is detecting unusual patterns of illness. This can be triggered by a significant increase in cases or reports from healthcare facilities, surveillance systems, or community health workers. Once a potential outbreak is identified, it is essential to confirm whether these cases represent a true outbreak or are part of normal fluctuations in disease incidence.

2. Case Definition: A clear and precise case definition is necessary to categorize who is considered to have the disease. This includes defining clinical symptoms, laboratory criteria, and, if applicable, __________ _____ ___ _____ _____ ___ ____ _________ _________.
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