D. Hameed Al-mudhafer, E. Hassani AL-Salami, and S. Jabbar Yasir, Trans., “Immunological Memory of Viral Infections: Mechanisms, Durability, and Implications for Protective Immunity —A Review”, JPMS, vol. 2, no. 5, pp. 107–156, May 2026, doi: 10.63939/4vx0dp82.