An oligonucleotide microarray for influenza A hemagglutinine subtyping was presented. The number of probes for determination of each subtype hemagglutinine (H1-H13, H15, H16, pandemic flu H1N1)varied from 13 to 28. When testing of the microarray using 40 type A influenza virus isolates the hemagglutinin subtypes were unambiguously determined for 36 specimens.
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