How long does measles last

How long does measles last?

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Measles (rubeola) is a highly contagious viral infection that follows a very predictable, albeit uncomfortable, timeline. While most people recover within 7 to 10 days once symptoms appear, the entire process from exposure to full health can span several weeks.

The Measles Timeline: From Exposure to Recovery

The disease progresses through four distinct stages:

  1. Incubation Period (7–14 Days): After exposure to the virus, you will likely feel completely normal for 10 to 12 days as the virus replicates.
  2. Early Symptoms (2–4 Days): This stage, known as the prodromal phase, includes high fever, cough, runny nose, and red, watery eyes. You may notice Koplik spots—tiny white dots—inside the mouth.
  3. Acute Rash (5–6 Days): A blotchy, red-brown rash usually begins at the hairline and face before spreading down to the torso, arms, and feet.
  4. Recovery & Fading (Days 10+): The rash fades in the same order it appeared. Fever typically subsides, and the skin may appear scaly as it heals.

How Long Are You Contagious?

Measles is one of the world’s most infectious diseases, largely because it can spread through the air for up to two hours after an infected person has left the room.

  • The 8-Day Window: You are contagious from 4 days before the rash appears until 4 days after its onset.
  • The Rule of Thumb: Stay home and isolate for at least four days after the rash first shows up.

Recovery Factors: Adults vs. Children

While the virus follows the same general path, recovery can vary based on several factors:

  • Age: Children often bounce back faster than adults, who are at a higher risk for severe complications.
  • Immune Status: Vaccinated individuals who experience a breakthrough case (rare) usually have a much milder, shorter illness.
  • Nutrition: Adequate Vitamin A intake is critical; many health organizations recommend supplements to reduce the risk of severe complications and blindness.
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When to Seek Medical Help

Most people recover in 10 days, but measles can weaken the immune system for months. Contact a provider immediately if you experience:

  • Ear infections or severe diarrhea.
  • Difficulty breathing (a sign of pneumonia).
  • High-fever-induced seizures or signs of brain inflammation (encephalitis).

Note: If you suspect measles, call your doctor or clinic before visiting in person to avoid infecting others in the waiting room.