Direct Detection of Molluscum Contagiosum Virus in Clinical Specimens by Dot Blot Hybridization

Overview

Journal J Clin Microbiol

Specialty Microbiology

Date 1991 Sep 1

PMID 1774321

Authors

J W HURST

B Forghani

C S Chan

L Oshiro

G Darai

Affiliations

Soon will be listed here.

Abstract

A dot blot hybridization protocol was developed for the direct detection of molluscum contagiosum virus (MCV) DNA in clinical specimens submitted for virus isolation. Samples were concentrated by high-speed centrifugation and treated with proteinase K; this was followed by a single phenol-chloroform extraction step. The DNA was denatured, and the entire volume was spotted onto a nitrocellulose membrane. A biotinylated DNA probe specific for the BamHI-C region of MCV type 1 was used for hybridization. Evidence of MCV DNA was visualized by using streptavidin alkaline phosphatase conjugate and 5-bromo-4-chloro-3-indolyl phosphate-nitroblue tetrazolium as the substrate. Results showed that nonspecific hybridization does not occur with herpes simplex virus- or orf virus-infected clinical specimens and that dot blotting is more sensitive and reproducible than electron microscopy.

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