A na-eji ngwa a maka nchọpụta qualitative na vitro nke Helicobacter pylori antigen na nlele stool mmadụ.[1].Nsonaazụ ule a bụ maka nchọpụta inyeaka nke ọrịa Helicobacter pylori na ọrịa afọ ụlọ ọgwụ[2].