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Why Is The Current Bird Flu So Deadly?

What’s making the latest strain of bird flu so deadly? Avian influenza used to mostly affect poultry, and while it continues to decimate poultry populations around the world, the latest strain, H5N1, is spreading widely among wild birds. It also seems to be spreading to mammals more frequently.

“Something is quite different about this virus this go around,” Rebecca Poulson, a wildlife disease researcher at the University of Georgia, told Nature.

Researchers aren’t sure why the current outbreak hasn’t disappeared, but they believe mutations may have increased its ability to replicate or to infect a broader range of species.

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Sorting Pigs On An Iowa Family Hog Farm

Video: Sorting Pigs On An Iowa Family Hog Farm

Sorting Pigs On An Iowa Family Hog Farm: In this one the boys sort and thin out all the pigs left over after overstocks went out to make sure all the pigs are even with space.