What is "uninfected"

Usage examples of "uninfected".

A specific antibody used against a specific virus should have destroyed the virus or slowed its progress, and there seemed to be no rational explanation for the dreadful response of the uninfected ones who had been inoculated for protection.

Furthermore, even if we wait three years, some of the older backup cores would be uninfected.

The only survivors of the experiment were the two control monkeys-the healthy, uninfected monkeys that lived in cages across the room from the sick monkeys.