Scarlet Fever, Seborrhea, Septicemia, Shingles, Skin Cancer, Straph Infection, Herpes Virus, Ulcers, Strep, Tonsillitis, Trenchfoot, Tuberculosisi, Virus Warts, Whooping Cough and Yeast Infections. The silver ion (Ag + ) is bioactive and in sufficient concentration readily kills bacteria in vitro . Silver also kills bacteria in external wounds in living tissue