Ahmed Jihad Abdulkadhim and Murtadha Allawi Jebur, “The Study of Biomarkers in Patients Who Were Re-Infected With COVID-19 After Being Vaccinated With (Pfizer or Sinopharm) Vaccine in Basra, Iraq”, CAJMNS, vol. 4, no. 5, pp. 640-652, Oct. 2023.