The best method for diagnosis of toxocariasis is the identification of Toxocara larvae in the tissue biopsy, but since this method is extremely invasive, the serological methods such as an enzyme-linked immunosorbent assay (ELISA) and western blotting using Toxocara excretory-secretory (TES) antigens, along with clinical symptoms and laboratory findings (hypereosinophilia and high levels of specific IgE), are considered reliable methods for the diagnosis of toxocariasis [12, 13]. The gene discussed is IGHE; the disease is toxocariasis.