Toxoplasma gondii is associated with viral infections like cytomegalovirus (CMV), and human
immunodeficiency virus (HIV), and an important a factor in SARS-COV-2 global pandemic.
This study investigated the potential attribution of T. gondii as a risk factor in COVID-19 infection
after vaccination and to detect associated hematological and biochemical parameters.
Out of 375 COVID-19 patients enrolled in the study, latent toxoplasmosis was detected in
108/375 (28.8%) patients. Regarding hematological parameters, a significant difference was reported
in white blood cells, lymphocyte, and neutrophil counts. Biochemical parameters, LDH
(426.5±446.4), ferritin (453.71±283.36), and D-dimer (603.43±519.13) were significant among
cases. The current work highlights the role of toxoplasmosis in COVID infections following
vaccination through the changes in the hematological and biochemical parameters