That's the way one scientist puts it — referring to how infected wild birds survive long enough to spread it to birds and mammals around the world. And that's a serious risk for human health.

Q&A: From people avoiding wild birds to farmers protecting their animals, Kent State epidemiologist Dr. Tara Smith shares tips on bird flu prevention.

Bird flu cases continue to spread across the country and the world, leaving many worried about their health as outbreaks increase in poultry and wild birds. The CDC said the public health risk is currently low,