Authors Wijdan Abdulghani SalehDepartment of Biology, College of Science, University of Kirkuk, IraqAfaf Saud HusseinDepartment of Biology, College of Science, University of Kirkuk, IraqDonia Suad ShakoorDepartment of Biology, College of Science, University of Kirkuk, IraqParzhin Sardar MohammedDepartment of Biology, College of Science, University of Kirkuk, Iraq Abstract This study was meant to investigate the mechanistic factors behind HEV infection causing severe clinical disease in pregnancy, targeting immune, hormonal, coagulation, and placental parameters in a case-control design with 77 HEV-infected pregnant women and 77 matched healthy controls in Iraq (January-December 2024 ). Sought were cytokine profiles (IFN-γ, IL-4, IL-10, TNF-α) and immune cell subsets (e.g., regulatory T cells), serum estradiol, progesterone, and cortisol concentrations; coagulation markers (PT, aPTT, D-dimer, fibrinogen). Laboratory investigations included ELISA kits for anti-HEV IgM/IgG; qualitative real-time PCR; multiplex cytokine assays; flow cytometry; hormone ELISAs; coagulation panels on an automated analyser. Significant differences were observed in HEV-infected pregnant women who had developed a Th2 essentially regulatory immune profile, evidenced by noticeably lower IFN-γ and higher IL-4, IL-10, TNF-α, and Treg cell percentages versus controls (p Keywords HEV infection Pregnant Women Pathogenic Mechanisms Elevated Maternal Mortality Risk targeting immune hormonal coagulation placental parameters Citation of this Article Wijdan Abdulghani Saleh, Afaf Saud Hussein, Donia Suad Shakoor, & Parzhin Sardar Mohammed. (2025). Physiological Dysregulations Associated with Hepatitis E Virus Infection in Pregnant Women: An Analytical Study of Pathogenic Mechanisms and Elevated Maternal Mortality Risk. Current Journal of Engineering and Science Research. 2(8), 6-12. 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