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Number of sampled sequences in partition into NC, SC and OT
| Partition | Hemagglutinin (H3) | Neuraminidase (N2) | Total |
|---|---|---|---|
| SC | 528 | 56 | 584 |
| NC | 150 | 1 | 151 |
| OT | 1302 | 270 | 1572 |
| Total | 1980 | 327 | 2307 |
SC – South China, NC – North China, OT – Representative of global community.
