Volume 14, Number 1—January 2008
Dispatch
Avian Influenza Virus (H5N1) Replication in Feathers of Domestic Waterfowl
Yu Yamamoto*
, Kikuyasu Nakamura*, Masatoshi Okamatsu*, Manabu Yamada*, and Masaji Mase*
, Kikuyasu Nakamura*, Masatoshi Okamatsu*, Manabu Yamada*, and Masaji Mase*
Table
Histopathology of feathers and virus isolation from the skin in domestic ducks and geese inoculated with 2 different avian influenza (H5N1) genotypes*
| PID |
A/chicken/Yamaguchi/7/2004 | A/chicken/Miyazaki/K11/2007 | |||
|---|---|---|---|---|---|
| Duck |
Goose |
Duck |
Goose |
||
| 3 | +/+† (3.5)‡ | –/– (–) | +/+ (4.5) | +/+ (4.4) | |
| 5 | +/+ (–) | +/+ (4.5) | –/+ (3.8) | +/+ (2.5) | |
*PID, postinoculation day.
†Epidermal necrosis of feathers/detected viral antigens; +, positive; –, negative.
‡Viral titer of the skin expressed as log10 egg infectious dose (EID50)/g; –, negative (<102 EID50/g).
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