During an investigation of a hospital outbreak of norovirus gastroenteritis identified as being caused by a recombinant genogroup II (rGII-3a) strain, fecal specimens collected from asymptomatic staff and patients were tested by nested PCR. A GII-4 norovirus strain, the predominant strain associated with outbreaks in hospitals over the last few years, was detected in 26 and 33% of asymptomatic staff and patients, respectively. No rGII-3a (Harrow/Mexico) norovirus strains were detected in the samples of asymptomatic staff or patients.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC404621 | PMC |
| http://dx.doi.org/10.1128/JCM.42.5.2271-2274.2004 | DOI Listing |
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