They were called blue BLOODs, as they were (relatively) clean enough to see 
the veins at the wrists, which appear blue. The working folk apparently were 
not...



  i will take into consideration that leaving a silver coin in water will have 
little if any change but i ask you to explain why the "blue skins" eating off 
of SILVERware, real silver ware survived plagues? the blue skins nicknamed due 
to there amount of silver intake causeing the graying of the skin hence blue 
skins had no battery or any mechanical ways to produce CS or did they?