Measles is a highly contagious
viral disease that spreads through the air and can cause a rash, fever, cough,
and runny nose.
It can
be severe and even fatal, especially for young children.
According to the BBC, a second child has died from measles as an outbreak of the highly contagious virus continues to grow in western Texas.
The US
has recorded more than 600 cases of measles so far this year, nearly three
times as many as the 285 cases that the Centers for Disease Control and
Prevention (CDC) recorded all of last year.
Many
of this year's cases - nearly all in unvaccinated people - are related to the
outbreak that began in western Texas.