Helmy-Khalil S, Fahmy M H, Ghanem M H, Said M, El Sawy M, Nofal M, Awadalla H N, Youssef M, Mucke D, Brock J
Tropenmed Parasitol. 1979 Dec;30(4):426-8.
The delayed intradermal test and migration inhibition tests were used to assess the delayed hypersensitivity in patients with BHF and simple intestinal bilharziasis using SEA. All bilharzial patients gave a positive intradermal test. The specificity of the intradermal test using SEA is demonstrated clearly by the negative response in all control groups.