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Real-time PCR methods for independent quantitation of TTV and TLMV
Eva M Moen1, Jowita Sleboda, Bjørn Grinde
1Department of Virology, National Institute of Public Health, P.O. Box 4404 Nydalen, N-0403, Oslo, Norway.
Abstract:
There is considerable interest in the possible clinical effects of the human circoviruses TT virus (TTV) and TTV-like mini virus (TLMV). Most people appear to have at least one of these viruses replicating actively in their bodies, thus mere correlation of the presence of virus and disease states are probably less informative than a quantitative analysis of viraemia. Real-time PCR based methods, with either SYBR Green or TaqMan probe, designed to quantitate selectively TTV and TLMV are described. The suggested TaqMan-based protocols were suitable for quantitation of viruses in the range of 10(2)-10(9) copies/ml of sample; and proved, by sequencing of PCR products, to be specific for each of the two viruses.