Measles Vaccine
What is it? Overview Usage Side Effects and Warnings

What is Measles Vaccine?

Measles is a highly contagious viral infection. It is caused by the measles virus.

The virus is spread, typically in winter and spring, by direct contact with nasal or throat secretions of an infected person. Less commonly, it can be spread by droplets in the air. Measles is contagious:

  • 1-2 days before the onset of symptoms
  • 3-5 days before the rash
  • 4 days after the appearance of the rash

Symptoms include:

  • Fever (often high)
  • Runny nose
  • Red eyes
  • Cough
  • A distinctive rash

Symptoms usually begin within 8-12 days following exposure. The rash lasts about 4-6 days. Full recovery can take 7-10 days. In severe cases (or in people with immune disorders), serious brain infection or pneumonia can happen when recovering from measles. Permanent brain...