Here is an answer that implies bacteria are evolving copper immunity: https://www.sciencedaily.com/releases/2016/03/160316130951.htm https://www.sciencedaily.co

Here is an answer that implies bacteria are evolving copper immunity: https://www.sciencedaily.com/releases/2016/03/160316130951.htm https://www.sciencedaily.com/releases/2016/03/160316130951.h...