In simple words: Measles is a very contagious illness caused by a virus. It causes a fever, cough, runny nose, red eyes, and a rash.It's also called rubeola.

Measles, also known as rubeola or morbilli, is a highly contagious viral infection.It is characterized by fever, cough, runny nose, conjunctivitis, and a distinctive maculopapular rash. Koplik spots (small white spots inside the mouth) may also be present.

Example 1: A 5-year-old child presents with fever, cough, runny nose, and red eyes.A rash develops a few days later, starting on the face and spreading downwards.Koplik spots are observed inside the mouth.The diagnosis is measles., A 10-month-old infant who has not yet received the MMR vaccine develops a high fever, cough, and runny nose, followed by a rash.The infant is diagnosed with measles, and complications, including pneumonia, develop, requiring hospitalization., A young adult who is unsure of their vaccination status travels abroad and returns with fever, cough, and a widespread rash.Measles is confirmed by laboratory testing.

Documentation should include the signs and symptoms observed (fever, cough, coryza, conjunctivitis, rash), presence or absence of Koplik spots, and any complications. Laboratory results should also be documented if performed.