Optimizing PCR positivity criterion for detection of herpes simplex virus DNA on skin and mucosa.

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作者:Magaret Amalia S, Wald Anna, Huang Meei-Li, Selke Stacy, Corey Larry
In 1997, we developed a PCR assay for the detection of herpes simplex virus (HSV) DNA. Recently, we determined an optimal positivity criterion based on research specimens and a dilution study. We found that a cutoff of 50 HSV DNA copies/ml of swab specimen, a level 10-fold lower than our previous cutoff, minimizes misclassification.

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