Serology is based on the use of antibodies to detect circulating antibodies (immunoglobulin) or antigens. Largely used in the diagnosis of infectious diseases, it is now often replaced by DNA or RNA detection of infectious agents by molecular biology techniques such as polymerase chain reaction (PCR, rt-PCR). However, antibody detection can have some advantages on PCR techniques and numerous di...

h.pylori infection stimulates immune responses. these responses at the mucosal level are predominantly of iga types, while circulating antibodies against this microorganism are predominantly igg classes. igm antibodies are rarely found and seem to be non-specific for this bacterium. in this research, water extract antigen, from three strains of h.pylori (isolated from patients with gastritis, d...