Volume 13, Number 4—April 2007
Research
Influenza (H5N1) Viruses in Poultry, Russian Federation, 2005–2006
Figure 3

Figure 3. Replication of influenza (H5N1) viruses in ferret upper respiratory tract. Male 8-month-old outbred ferrets were inoculated intranasally with 106 50% egg infectious dose (EID50) of virus in 0.5 mL phosphate-buffered saline. Virus titers are the mean ± SD from 3 ferrets, expressed as log10 EID50/mL of nasal wash fluid. *Virus was detected in 2 ferrets. †Virus was detected in 1 ferret.
1These authors contributed equally to this work.
2Current affiliation: US Department of Agriculture, Athens, Georgia, USA