Gabby Giffords speaks onstage at the "Gabby Giffords Won't Back Down" Q&A during the 25th SCAD Savannah Film Festival on October 28, in Savannah, Georgia.
Mandatory Credit: Dia Dipasupil/Getty Images
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Gabby Giffords still struggles to find words, but she hasn't lost her voice
Doctors and public health experts often talk about a bullet as the vector, just as a virus is the vector of transmission in infectious diseases. Both leave a path of destruction as they travel. Families are left to bury loved ones, and survivors may live with chronic injuries that reveal the damage even one bullet can do.
