Background Sequences of a novel herpesvirus, Kaposi's sarcomaassociatedherpesvirus (KSHV), have been identified in Kaposi's sarcomatissue, but it is not known whether the virus is transmittedby sexual contact.
Methods Using the polymerase chain reaction (PCR), we searchedfor KSHV DNA sequences in ejaculates from 43 healthy men andtissue from the urogenital tract or prostate of 100 immunocompetentadults.
Results In an unblinded analysis, we identified KSHV DNA sequencesin 2 of 20 tissue specimens from the urinary tract (10 percent;15 men and 5 women), 3 of 46 specimens from the female genitaltract (6.5 percent), 4 of 18 specimens from the glans or foreskin(22 percent), 7 of 16 specimens from the prostate (44 percent),and 30 of 33 ejaculates (91 percent). By contrast, such sequenceswere present in 1 of 18 samples of normal skin (5.5 percent)and 1 of 14 samples of peripheral-blood mononuclear cells (PBMCs;7.1 percent). Ejaculates and PBMC samples from each of 10 studysubjects were analyzed in a blinded, coded fashion, along withPBMCs and biopsy specimens of normal skin from 4 and 8 otherpatients, respectively. This analysis confirmed the presenceof KSHV DNA sequences in semen. Viral DNA was not found in thesperm heads but was present in the fraction of the ejaculatesthat contained urothelial and other types of cells. Point mutationswere found in PCR products amplified from both prostate tissueand sperm samples.
Conclusions KSHV infects a large proportion of healthy adultsand is probably transmitted by sexual contact.
Source Information
From the Institute of Microbiology, University of Ferrara (P.M., L.L., M.F., E.C.); and the Laboratorio Analisi, S. Anna Hospital (F.R.) both in Ferrara, Italy.
Address reprint requests to Dr. Monini at the Institute of Microbiology, University of Ferrara, via L. Borsari 46, 44100 Ferrara, Italy.
Absence of HHV-8 in Prostate and Semen
Corbellino M., Bestetti G., Galli M., Parravicini C., Tasaka T., Said J. W., Koeffler H. P., Monini P., de Lellis L., Cassai E.
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N Engl J Med 1996;
335:1237-1239, Oct 17, 1996.
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