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  • Title: Prevalence of BK virus and JC virus in peripheral blood leukocytes and normal arterial walls in healthy individuals in China.
    Author: Gu ZY, Li Q, Si YL, Li X, Hao HJ, Song HJ.
    Journal: J Med Virol; 2003 Aug; 70(4):600-5. PubMed ID: 12794723.
    Abstract:
    Several studies have demonstrated that BK virus (BKV) and JC virus (JCV) establish latent infection in peripheral blood leukocytes (PBLs) of healthy individuals; however, the main populations studied are European. In this study, the prevalence of BKV and JCV DNA in PBLs from healthy adult individuals and umbilical cord blood from newborn children in China was detected by semi-nested polymerase chain reaction (snPCR) followed by restriction enzyme analysis. The results suggest that the healthy adult Chinese population harbors BKV and JCV DNA in peripheral leukocytes. Overall, the prevalence of BKV and JCV DNA in PBLs of healthy adult individuals was 42.1% and 7.8%, respectively. The overall prevalence of BKV DNA was significantly higher than that of JCV DNA. None of the umbilical cord blood samples from newborn children were positive for BKV and JCV DNA. To understand further the target tissues involved in establishment of BKV and JCV latency in healthy individuals, the presence of DNA from both viruses was detected in normal arterial wall samples from 20 young trauma victims by the same method used for leukocyte DNA. BKV DNA was detected alone in 20% of samples tested; JCV DNA was not detected alone in any of the samples. DNA from both viruses was found in 5% of samples. This is the first report to show that normal arterial walls of healthy individuals may be another target site of latency for BKV and JCV.
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