There were no significant changes in WBC, eosinophils and IgE between asthmatic and parasitic infected groups.<h4>Conclusion</h4>Ascaris infection could induce the inflammatory immune response in children, but couldn't cause a significant effect on pulmonary function tests in these children; The impairment in PFT was due to asthma disease and not correlated to ascariasis. This evidence concerns the gene IGHE and asthma.