Measles is a highly contagious viral infection that manifests with a distinct set of symptoms, beginning with a high fever, cough, runny nose, and red, watery eyes. These initial signs typically appear about 10 to 14 days after exposure to the virus. As the infection progresses, a red rash begins to spread, starting at the hairline and moving downwards across the body. **Early Symptoms** In the early stages, measles resembles a common cold. The fever can reach as high as 104°F, accompanied by a persistent cough and a runny nose. Conjunctivitis, or inflammation of the eyes, often adds to the discomfort, making light sensitivity a common complaint. These symptoms are crucial to identify as they precede the appearance of the rash by a few days. **The Rash and Koplik Spots** The measles rash is a hallmark of the disease, characterized by flat red spots that may merge to form larger blotches. This rash usually starts on the face before spreading to the trunk and limbs. Additionally, unique white spots, known as Koplik spots, may appear inside the mouth two to three days after the initial symptoms begin, serving as a precursor to the rash. **Complications to Watch For** While the primary symptoms are uncomfortable, the real danger of measles lies in its potential complications. These can include ear infections, diarrhea, and more severe conditions such as pneumonia and encephalitis, particularly in children under five or adults over twenty. Recognizing the symptoms early can help in seeking timely medical intervention, which is crucial for preventing complications. Understanding these symptoms is vital, especially in light of recent measles exposure alerts at major transit hubs like Chicago O'Hare. With heightened awareness, timely vaccination, and immediate medical consultation, the spread of measles can be effectively managed.

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