In a second animation, the path of swine influenza H1N1 is traced over time from its origins in the Southeast's hog farms.

"Understanding the importance of long-distance pig transportation in the evolution and spatial dissemination of the influenza virus in swine may inform future strategies for the surveillance and control of influenza," Nelson and her colleagues concluded in their paper.

Want to find out more about where your state's hogs, cattle and sheep are coming from? Check out the U.S. Department of Agriculture's "Interstate Livestock Movements: State-to-State Flows" interactive maps to search by state and animal.


Animations courtesy of Nelson MI, Lemey P, Tan Y, Vincent A, Lam TT-Y, et al.

3 Comments

1. 1. ASHIK 11:36 AM 9/22/11

   lucky me i havent got a flu from pigs but i have had appendix operation because of it.

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2. 2. alan6302 09:09 PM 9/22/11

   Our agricultural policies are delusional .Ruminants are supposed to play a part in the " Big One" .

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3. 3. dj95401 03:22 PM 9/23/11

   The Confederate States to the Union States: "You beat us in 1865, but now we have 'Germ Warfare'! And we'll beat you with our Swine, Ha, Ha, Ha!! Allah, good teacher=))

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