IJSR International Journal of Scientific Research 2277 - 8179 Indian Society for Health and Advanced Research ijsr-10-5-35344 Original Research Paper OLIGODYNAMIC ACTION OF SILVER, COPPER, BRASS AND STEEL ON SALMONELLA TYPHI ISOLATED FROM MICROBIOLOGY LABORATORY OF A TERTIARY CARE HOSPITAL. Yeasmin Dr. Indrani Bhattacharyya Dr. May 2021 10 5 01 02