Investigation of cross-reactions against Trichinella spiralis antigens by enzyme-linked immunosorbent assay and enzyme-linked immunoelectrotransfer blot assay in patients with various diseases.
Data regarding cross-reactions against Trichinella spiralis in humans are scarce and controversial. For this reason, we tested serum samples from patients with typhoid fever, brucellosis, toxoplasmosis, amoebiasis, cysticercosis, trichocephaliasis, ascariasis, and onchocerciasis against an antigenic extract of T. spiralis infective larvae in an enzyme-linked immunosorbent assay (ELISA) and an enzyme-linked immunoelectrotransfer blot (EITB) assay. All except one serum sample from the group of patients with onchocerciasis were negative in the ELISA; in the EITB assay, only faint bands were observed with the samples from patients with onchocerciasis and ascariasis and negative results were obtained with the samples from patients with other diseases. In conclusion, cross-reactions were found only in the groups of patients with other nematode infections and were of very low magnitude, most of them virtually negative.
De-la-Rosa
J L
JL
Departamento de Inmunoparasitología, Instituto Nacional de Diagnóstico y Referencia Epidemiológicos, Secretaria de Salud, México D.F., México.
Alcantara
P
P
Correa
D
D
D000562:Amebiasis / Q000097:blood / Q000276:immunology; D000818:Animals; D000907:Antibodies, Bacterial / Q000097:blood / Q000276:immunology*; D000909:Antibodies, Helminth / Q000097:blood / Q000276:immunology*; D000913:Antibodies, Protozoan / Q000097:blood / Q000276:immunology*; D000915:Antibody Affinity; D001196:Ascariasis / Q000097:blood / Q000276:immunology; D015153:Blotting, Western / Q000379:methods; D002006:Brucellosis / Q000097:blood / Q000276:immunology; D003429:Cross Reactions; D003551:Cysticercosis / Q000097:blood / Q000276:immunology; D004797:Enzyme-Linked Immunosorbent Assay; D006801:Humans; D007239:Infections / Q000097:blood / Q000276:immunology*; D009855:Onchocerciasis / Q000097:blood / Q000276:immunology; D012680:Sensitivity and Specificity; D017160:Trichinella spiralis / Q000276:immunology*; D014235:Trichinellosis / Q000097:blood / Q000276:immunology*; D014257:Trichuriasis / Q000097:blood / Q000276:immunology; D014435:Typhoid Fever / Q000097:blood / Q000276:immunology
D000907:Antibodies, Bacterial; D000909:Antibodies, Helminth; D000913:Antibodies, Protozoan