IJSR International Journal of Scientific Research 2277 - 8179 Indian Society for Health and Advanced Research ijsr-11-10-44030 Original Research Paper CONVALESCENT PLASMA: ITS EFFECTIVENESS IN TREATING MODERATE AND SEVERE CASES OF COVID 19 IN A TERTIARY CARE CENTRE IN UTTARAKHAND Neha Batra Dr. Dr. Nidhi Uniyal Dr. Dr. Deepa Hatwal Dr. Dr. Snigdha Petwal Dr. October 2022 11 10 01 02