We compared kidney tissue samples and cloacal and nasopharyngeal swab samples from field-collected dead crows and blue jays for West Nile virus surveillance. Compared to tissue samples, 35% more swab samples were false negative. Swab samples were usually positive only when the corresponding tissue sample was strongly positive.
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|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3310617 | PMC |
| http://dx.doi.org/10.3201/eid1209.050016 | DOI Listing |
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