IJSR International Journal of Scientific Research 2277 - 8179 Indian Society for Health and Advanced Research ijsr-11-6-42572 Original Research Paper Perception of influenza vaccine safety and efficacy among primary care chronic illness patients in Dammam & Khobar, KSA, 2021 Alruwaili Dr. Abeer Alhashel Dr. Rasha Alawwad Dr. June 2022 11 6 01 02