Dust In The Wind (A zombie mystery)

Humanity is rebuilding after a zombie apocalypse, but that doesn't mean there isn't an occasional outbreak. Prosecutor Karen Domenick starts some routine paperwork on a woman who killed her husband as he was starting to turn into a zombie. But something doesn't add up. Was this self defense or murder?
Even a speck of skin cells breathed in through the air might cause her to be infected. So, Karen will have to be extremely careful investigating the crime scenes, so that she doesn't bring the plague back to her family.
The zombie and detective genres are merged in this short story.