Bringing Out the Dead: Science Fiction

Bringing out the dead was a weary task, but the gene-scanners had done a quick read of her and told her that she was one of the few blessed by an unquestioned immunity and incapable of carrying the disease back to home. The newly enacted law for the plague specified that she could not be kicked out of her university or fired from her job for performing this valuable public service, and so she had gone from being a devoted music student and a much-less-than-devoted bookkeeper for a small restaurant to being one who walked down the narrow streets, where cars zipped by overhead, playing the message requesting people to bring out their dead. It was projected loud enough that the people in the cars could hear it--

Inspiration: "Messiah Ward" - Nick Cave and the Bad Seeds
Story Potential: High.
Notes: I find the genetic ability to catch or not catch a disease interesting, and this is a good setting that could go some interesting places. Why do certain people have this gene? Artificial intervention? Nature? What will this do to their society? What place will the heroine find?