Stories by Associated Press

Measles is caused by a highly contagious virus that’s airborne and spreads easily when an infected person breathes, sneezes or coughs. It is preventable through vaccines, and had been considered eliminated from the U.S. since 2000.

In the Chicago area, the National Weather Service was predicting lake effect snow leading to hazardous road conditions throughout the day on Monday, including during the morning and evening commute.