Measles
Measles, also known as rubeola, is an infection caused by a virus. A virus is a type of germ. It is very contagious (spreads easily from person to person). Measles spreads when an infected person coughs or sneezes the virus into the air, and someone breathes it in or touches it. The virus goes into their eyes, nose, or mouth. The virus can stay alive in the air and on hard surfaces for several hours....