Symptoms of Measles
Virus symptoms can feel like a common cold including: fever, cough, runny nose, sore throat, and red, watery eyes. Symptoms typically start 7-14 days after coming in contact with the virus.
A few days later, tiny white spots (called Koplik spots) may appear inside the mouth. The most recognizable symptom—a red, rough-feeling rash—usually starts on the face and spreads down the body.
Measles can lead to serious conditions like pneumonia and swelling of the brain, known as encephalitis. This is especially dangerous for young children, pregnant women, and people with weakened immune systems.
Diagnosing Measles
Measles is typically diagnosed based on a combination of symptoms, including the characteristic rash and other signs such as fever, cough, and runny nose.
Cases of measles in the U.S. are almost always in people who have not received the vaccine, especially if they have traveled to an area that has a measles outbreak. To confirm the diagnosis, a nasal swab or throat swab may be used to detect the presence of the virus.
Your health care provider may also test for the specific antibodies produced in response to the infection.