On episode #198 of the science show This Week in Virology, Vincent, Alan, Rich, and Kathy review fatal avian influenza virus in harbor seals, and poxvirus deployment of genomic accordions to counter antiviral defenses.
There once was a virus named pox
Whose genome contained a squeeze-box
When placed under pressure
It expanded its measure
Overcoming the new cellular blocks
You can find TWiV #198 at www.microbe.tv/twiv.