Based on vaccination levels, the researchers grouped counties -- and ZIP codes -- into five categories of risk from "lowest ...

Vaccination rates are waning nationwide and California is no exception: See the data and risk level for Los Angeles County.

The FDA classification underscores the urgency of the situation and the potential danger posed by the contaminated products.

For the first time, a map built on the work of Massachusetts-based researchers reveals the measles vaccination rate in every ...

GREENSBORO, N.C. — Severe weather can strike at any time, and when it does, it’s important to understand the level of threat you're facing. The Storm Prediction Center (SPC) uses a system of risk ...