Certain indicators can signal a potential outbreak, such as: 1. Increase in Case Numbers: A sudden rise in the number of cases above expected levels. 2. Cluster of Cases: Cases occurring in a specific geographical area or population group. 3. Unusual Symptoms or Pathogens: Presence of uncommon symptoms or detection of rare pathogens. 4. Temporal Patterns: Patterns in the timing of cases, such as a spike in cases during a particular season.