Hybridomas producing monoclonal antibodies (MAbs) directed against P. vivax erythrocytic stage antigens were isolated. Here, we describe the production of six MAbs. Culture supernatant from growing hybridomas was tested for their reactivity with P. vivax erythrocytic stages by ELISA against P. vivax crude (PvC) antigen and by immunofluorescence assay on P. vivax infected erythrocyte smears. P. ...