Measles outbreaks in West Texas and New Mexico are now up to nearly 320 cases, and two unvaccinated people have died from measles-related causes. Measles is caused by a highly contagious virus that's airborne and spreads easily when an infected person breathes,

As the measles outbreak that began in northwest Texas continues to spread, health officials are warning it could be months, and perhaps up to a year, before it’s declared over. The outbreak began in late January in the South Plains region shows no signs of slowing down,