criteria to say measle

1. Presence of characteristic symptoms including fever, cough, runny nose, and red, watery eyes

2. Appearance of a rash that typically starts on the face and spreads to the rest of the body
3. History of exposure to someone with confirmed measles or travel to an area where measles is prevalent
4. Laboratory confirmation of measles through blood tests or viral cultures
5. Confirmation of measles by a healthcare provider based on clinical assessment and symptoms.