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In the past three years, outbreaks of bird flu, formally called highly pathogenic avian influenza, in wild animals spilled over to dairy cows and poultry, infecting several dozen humans and even killing one American.

Israel's military chief has said it struck "operatives" who attacked civilians from the Druze community on the outskirts of Damascus, after an outbreak of sectarian violence that has reportedly killed more than 40 people.

And with outbreaks south of us working their way ever closer, we'll have science to thank if it stays that way.

Q: Given the rise in vaccine skepticism, are you worried that the recent measles outbreak could grow?

Measles has been confirmed in a Los Angeles County resident who recently returned from Texas, a state that is in the midst of an outbreak of the highly infectious disease, health officials said Friday.