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Journal of Clinical Microbiology, Sep 1996, 2113-2116, Vol 34, No. 9
W Saitoh-Inagawa, A Oshima, K Aoki, N Itoh, K Isobe, E Uchio, S Ohno, H Nakajima, K Hata and H Ishiko
To detect and identify adenovirus (Ad), we used a combination of PCR and
restriction fragment length polymorphism (RFLP) analysis. Nested PCR with
two primer sets that hybridize to the conserved region for hexon proteins
of 14 prototypes of Ad, Ad serotype 1 (Ad1) to Ad8, -11, -14, -19, -37,
-40, and -41, amplified a 956-bp DNA fragment. The amplified fragments from
the 14 prototypes were completely differentiated with a combination of
three restriction endonucleases, EcoT14I, HaeIII, and HintI. We applied
this new method for 127 samples of conjunctival scrapings from patients
with conjunctivitis and compared the results with those obtained with the
combination of culture isolation and a neutralization test (NT). PCR gave a
positive result in 69 of 127 cases (54.3%), while only 61 of the 127
samples (48.0%) tested positive by culture isolation. Compared with
isolation, the PCR method had a sensitivity of 100% (61 of 61). Positive
PCR samples were further classified as Ad37 (59.5%), -3(31.9%), -11 (4.3%),
-8 (2.9%), and -4 (1.4%) by PCR-RFLP analysis. Of eight samples that were
PCR positive and culture isolation negative, six were Ad37 and two were Ad8
by PCR-RFLP analysis. These differentiations of isolation- positive samples
were identical to the results obtained by the NT. It took only 3 days to
detect and identify Ad by PCR-RFLP analysis, whereas it took at least 3
weeks by culture isolation and NT. Our newly developed method of detecting
and typing human Ad by PCR-RFLP analysis is more sensitive, accurate, and
rapid than the conventional method of culture isolation and an NT.
Copyright © 1996 by the American Society for Microbiology. All rights reserved.
Rapid diagnosis of adenoviral conjunctivitis by PCR and restriction fragment length polymorphism analysis
Department of Ophthalmology, Yokohama City University School of Medicine, Kanagawa-ken, Japan.
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