Rapid detection of herpes simplex virus in clinical specimens by centrifugation and immunoperoxidase staining

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Abstract
The effect of immunoperoxidase staining and centrifugation on the sensitivity and rapidity of herpes simplex virus detection in mink lung cell cultures was determined with 730 clinical specimens. In standard tube cultures, the use of immunoperoxidase staining resulted in detection of 31 (91%) of 34 positive cultures after overnight incubation, compared with 25 (74%) detected without the stain (P < 0.05). The effect of centrifugation of specimens onto the monolayer followed by overnight incubation and immunoperoxidase staining was studied with 431 specimens. Of 107 positive specimens, 103 (96%) were detected by this method, compared with 91 (85%) detected in standard cell cultures observed for 5 days (P < 0.02). Standard cell cultures that were examined after overnight incubation detected only 62 (58%) of the 107 positive specimens (P < 0.001). Centrifugation of clinical specimens onto cell monolayers followed by overnight incubation and immunoperoxidase staining is more rapid and sensitive than are standard cell culture techniques for the laboratory diagnosis of herpes simplex virus infection.

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