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Infectivity of H1N1 viruses in ferrets
| Virus | Virus dose (PFU) | No. seroconverted/total* | No. shedding/total | FID50 (PFU) | Viral titer in nasal wash** |
|---|---|---|---|---|---|
| A/Gilroy/231/2011 (H1N1pdm) | 1 | 0/3 | 0/3 | 3·2 | <1·2 |
| 10 | 3/3 | 2/3 | 3·3 | ||
| 100 | 3/3 | 3/3 | 3·3 | ||
| A/South Dakota/6/2007 (H1N1) | 10 | 1/3 | 1/3 | 32 | 2·2 |
| 100 | 2/3 | 2/3 | 3·6 | ||
| 1000 | 3/3 | 3/3 | 5·7 |
Seroconversion was determined by HAI assay.
Mean peak viral titer expressed as TCID50/ml.
