Fade, Radhia Hussain, Mohemed Fleeh Dareef, and Salah Mehdi Medical Microbiology. “Effect of The Pfizer-Biontech Vaccine on Ifn-Γ Serum Levels and Its Genetic Variations in Response to Vaccination”. South Eastern European Journal of Public Health (October 13, 2024): 882–887. Accessed March 12, 2026. http://www.seejph.com/index.php/seejph/article/view/1612.