一、各种皮内反应的敏感性,特异性和免疫学特征在乌干达曼氏血吸虫病流行地区,对非洲居民700人皮内注射曼氏血吸虫成虫和尾蚴抗原,以评价其即时反应和延迟反应。对6例延迟反应和2例即时反应(无延迟反应)作了活体组织学检查。成虫抗原即时反应敏感性高达87～95%,该抗原对感染的妇女和儿童较尾蚴抗 Sensitivities, Specificities and Immunological Characteristics of Various Intradermal Responses In an area endemic to Schistosoma mansoni in Uganda, 700 adults of African inhabitants were immunized intradermally with adult and cercariae of S. mansoni to evaluate their immediate and delayed response . Six cases of delayed response and two immediate reactions (no delay response) were biopsied. The immediate response sensitivity of adult worms is as high as 87-95%. This antigen is more effective against cercariae in infected women and children