Methods Using Angiostrongylus adult worm antigens and colloidal gold labelled SPA developing agent, a dot immunogold filtration assay (DIGFA) was used to detect serum antibodies to cantonensis.

• 方法以广州管圆线虫成虫抗原为包被抗原，金标记SPA为显色剂，建立检测广州管圆线虫抗体的滴金免疫渗滤法(DIGFA)；