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Journal of Clinical Microbiology, Jan 1997, 71-78, Vol 35, No. 1
M Friedman-Einat, Z Grossman, F Mileguir, Z Smetana, M Ashkenazi, G Barkai, N Varsano, E Glick and E Mendelson
Adeno-associated virus (AAV) is a defective parvovirus with unknown
pathogenicity. It requires helper functions for its normal replication in
human tissue and therefore is not readily isolated from clinical specimens.
We have used the PCR method to examine the following clinical samples for
the presence of AAV sequences: (i) 15 nasopharyngeal aspirates from
symptomatic patients, (ii) 7 swab or fluid specimens from vesicles of
patients suspected of having varicella- zoster virus infections, (iii) 21
human papilloma virus-positive genital biopsy specimens, (iv) 61 genital
swab specimens from women suspected of having herpes simplex virus (HSV)
infection examined either directly or following propagation in tissue
culture, (v) 62 samples of first-trimester aborted material, including 38
samples from spontaneous abortions and 24 samples from induced abortions,
(vi) 11 samples of chorionic villi taken from women undergoing genetic
prenatal diagnosis, and (vii) three lots of cultured human embryonic cells.
AAV sequences were detected only in samples taken from the genital tracts
of women suspected of having HSV infection and not in any of the other
types of samples. Samples from 11 patients were positive for AAV: for 4
patients the original swab sample was positive, for 4 patients the cultured
swab sample was positive, and for 3 patients both the original swab samples
and the cultures were positive. Five of the 11 patients were infected with
HSV. Our study demonstrates the presence of AAV in the female genital
tract. However, in contrast to a previous report (E. Tobiasch, M. Rabreau,
K. Geletneky, S. Larue-Charlus, F. Severin, N. Becker, and J. R.
Schlehofer, J. Med. Virol. 44:215-222, 1994), we did not find solid
evidence of its replication in maternal or embryonal tissues from the first
trimester of pregnancy. The questions of a potential pathogenic etiology of
AAV and the interaction with HSV remain open.
Copyright © 1997 by the American Society for Microbiology. All rights reserved.
Detection of adeno-associated virus type 2 sequences in the human genital tract
Institute of Hematology, Chaim Sheba Medical Center, Tel-Hashomer, Israel.
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