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Health Alert Network (HAN). Provided by the Centers for Disease Control and Prevention (CDC).

Receiving medical care abroad can be risky. Learn about those risks and how to minimize them.

Answers to common questions about flu vaccine effectiveness for the 2013-14 season - CDC

Hsiu Wu, MD1,2, Su-San Chang, PhD3, Hsiang-Jung Tsai, DVM, PhD4, Ryan M. Wallace, DVM1, Sergio E. Recuenco, MD, DrPH5, Jeffrey B.

Dirk T. Haselow, MD, PhD1, Haytham Safi, MD1, David Holcomb, MS1, Nathaniel Smith, MD1, Kendall D. Wagner, MD2, Branson B.

Rachel E. Gicquelais, MPH1, Jamae F. Morris, PhD2, H.

Adriana S. Lopez, MHS1, Cristina Cardemil, MD2, Laura J. Pabst, MPH2, Karen A.

This free online resource offers practitioners and others working to prevent violence with important knowledge and resources for using evidence in their decision-making processes.

ATSDR's Toxic Substances Web Portal makes it easy for researchers and citizens to find information about toxic chemicals and related health effects. Learn how toxic substances can affect health and how to prevent exposure.

Taking your faithful pooch or kitty on a flight? Make sure you’ve got your pet’s paperwork wherever you go—and bring it back with you, too. The United States expects the same documents regardless of whether your pet is a first-time traveler to the United States or is a returning from an international trip.