What to know about measles

Measles, one of the world’s most contagious infectious diseases, can cause serious complications – such as blindness, pneumonia or encephalitis, swelling of the brain – and even turn deadly, especially in children younger than 5.

​ Measles, one of the world’s most contagious infectious diseases, can cause serious complications – such as blindness, pneumonia or encephalitis, swelling of the brain – and even turn deadly, especially in children younger than 5. Read More Breaking News, Latest News and Videos | CNN