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Figure 5 | Virology Journal

Figure 5

From: Deletions of neuraminidase and resistance to oseltamivir may be a consequence of restricted receptor specificity in recent H3N2 influenza viruses

Figure 5

A. A/OK/323/03 and A/OK/309/06 can grow in the presence of oseltamivir. The results shown are the virus yield, expressed as HA titer, for the average of two different virus doses grown in increasing concentrations of oseltamivir carboxylate. NWS-Mem/98 (H1N9) is included as a control virus that is sensitive to oseltamivir inhibition. B. PCR products of NA gene after growth of A/OK/323/03 and A/OK/309/06 in oseltamivir. No full-length NA gene segment was visible but small fragments appear as diffuse bands less than 500 bp in length.

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