You Are Born Exploding
Novelette 14,130 words Recommended by 3 award/anthology sources
"When Elisabeth takes the baby to the beach on Thursday afternoon, another shambler has got through the fence. “Stay ten meters back,” the guard says, his translucent face mask fogged with the heat. “Yes, yes,” Elisabeth says. “And the child. Ten meters.” “We’re fully inoculated,” Elisabeth says, annoyed."
Content warnings 2
child-deathdeath
Quasar links out; the story lives on Clarkesworld, where the author gets the click.