The decision will relieve European NATO allies and some Republicans amid concerns that Washington's tough talk on Europe ...

Robert F. Kennedy Jr. ducked questions during a congressional hearing Wednesday about whether children should be vaccinated for measles, chickenpox or polio.

Medical authorities worldwide have established the safety and effectiveness of the vaccine against chickenpox, despite US ...

WASHINGTON (AP) — U.S. Secretary of State Marco Rubio travels ... for two days of meetings with his NATO counterparts and European officials, and he can expect to be confronted with questions ...