Investigation of vesicular rashes for HSV and VZV by PCR
β Scribed by Beards, Graham; Graham, Colin; Pillay, Deenan
- Book ID
- 101216284
- Publisher
- John Wiley and Sons
- Year
- 1998
- Tongue
- English
- Weight
- 41 KB
- Volume
- 54
- Category
- Article
- ISSN
- 0146-6615
No coin nor oath required. For personal study only.
β¦ Synopsis
Vesicular fluid from rashes of 132 patients was tested by a multiplex PCR shown to be specific for herpes simplex virus (HSV) type 1 and 2, and varicella zoster virus (VZV) genomic DNA. The results were compared with those obtained by examination by electron microscopy and virus isolation by cell culture. The PCR did not differentiate between HSV 1 and 2. By PCR, 64 HSV infections and 53 VZV infections were identified, with presumed 100% sensitivity and specificity. Fifteen specimens tested negative by PCR, electron microscopy, and virus isolation for herpes viruses. The sensitivities of virus isolation and electron microscopy for detection of herpes simplex virus were 56% and 80%. For varicella zoster virus, the sensitivities of virus isolation and electron microscopy were 47% and 60%. These data illustrate the advantage of rapid PCR diagnosis of herpes simplex virus and varicella zoster virus in vesicle fluids.
π SIMILAR VOLUMES
The polymerase chain reaction (PCR) enables rapid and sensitive detection of VZV and HSV DNA and its efficiency depends mainly on the choice of the primers. Primers should hybridize to conserved DNA sequences within the viral genomes i n order to avoid unreliable amplification due to DNA sequence va