Use of an immunoperoxidase technique to detect equine herpesvirus-1 antigen in formalin-fixed paraffin-embedded equine fetal tissues.
An indirect immunoperoxidase (IP) procedure using the avidin-biotin-peroxidase complex detection technique was developed to detect viral equine herpesvirus-1 (EHV-1) antigen in formalin-fixed paraffin-embedded tissues from aborted equine fetuses. The procedure was applied to liver, lung, and other tissues from 20 cases of confirmed or suspected EHV-1-induced abortions. Specific staining was observed in tissue sections from EHV-1-infected fetuses. Positive IP staining was present in tissues of 7 cases that were also positive by fluorescent antibody (FA) and virus isolation (VI) and that had typical histologic lesions. There was no IP staining in 7 cases that had no histologic lesions and negative FA and VI results. Five cases had typical histologic lesions and positive results in only 1 laboratory test; 3 were positive by VI and 2 by FA. Liver of 1 case was positive by IP, but tissues were too autolytic for other tests to be evaluated.
Schultheiss
P C
PC
Veterinary Diagnostic Laboratory, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins 80523.
Collins
J K
JK
Carman
J
J
D000034:Abortion, Veterinary; D000818:Animals; D000956:Antigens, Viral / Q000032:analysis*; D005260:Female; D005333:Fetus; D004861:Herpesvirus 1, Equid / Q000302:isolation & purification*; D006736:Horses; D007124:Immunoenzyme Techniques; D008099:Liver / Q000382:microbiology* / Q000473:pathology; D008168:Lung / Q000382:microbiology / Q000473:pathology; D009336:Necrosis; D010920:Placenta / Q000382:microbiology / Q000473:pathology; D011247:Pregnancy
D000956:Antigens, Viral