Even though they'd been married for 30 years, she had difficulty recognizing the body as his.
The nanobot scrubbers had seemed like a miracle cure, busily clearing out fatty deposits in her husband's heart and arteries. A miracle until they'd learned to communicate, multiply, seek out more sustenance, consumed him from the inside out.
She waited for the scientists from the University to pick him up. The family dog whined, raising his skeletal head; apparently old age was creeping up on him, although he was only 8. Angrily scratching her increasingly itchy legs, she blamed the infestation on the dog.