title: Circumoval precipitin (COP) test in schistosomiasis with frozen Schistosoma mansoni eggs.
abstract: Frozen Schistosoma mansoni eggs were successfully employed in the circumoval precipitin (COP) test for schistosomiasis yielding results comparable with fresh eggs. This development may permit both standardization and kit production of the COP test.
mesh_terms: D000818:Animals; D005260:Female; D005615:Freezing; D006801:Humans; D051379:Mice; D010063:Ovum / Q000502:physiology; D011233:Precipitin Tests / Q000379:methods*; D012550:Schistosoma mansoni; D012552:Schistosomiasis / Q000175:diagnosis*