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Table 3 Virus recovery from birds experimentally inoculated with A/mallard/Hokkaido/24/09 (H5N1)

From: Characterization of a non-pathogenic H5N1 influenza virus isolated from a migratory duck flying from Siberia in Hokkaido, Japan, in October 2009

    

Virus recoveryd

 

Birds

No. of

Birds

Daysa

p.i.

Clinical

signs

Swabs (log EID50/ml)

Tissues (log EID50/g)

Antibodye response

    

Trachea

Cloaca

Brain

Trachea

Lungs

Kidneys

Colon

 

Chickens

1 - 4

3

-b

<

<

<

<

<

<

<

NT

 

5 - 8

14

-

NTc

NT

NT

NT

NT

NT

NT

< 40f

Domestic ducks

1 - 4

3

-

<

<

<

<

<

<

<

NT

 

5 - 8

14

-

NT

NT

NT

NT

NT

NT

NT

1,600f

Quails

1

3

-

3.3

<

<

<

<

<

<

NT

 

2

3

-

3.6

<

<

<

<

<

<

NT

 

3 - 4

3

-

<

<

<

<

<

<

<

NT

 

5 - 8

14

-

NT

NT

NT

NT

NT

NT

NT

800f

  1. a All birds were sacrificed.
  2. b -: Birds did not show any clinical signs during observation days.
  3. c NT: Not tested.
  4. d Digit: Virus titers. <: Virus titer was less than 0.8 log EID50/ml swab or 1.5 log EID50/g tissue.
  5. e ELISA titers on 14 dpi.
  6. f ELISA titers of three birds were equal.
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Virology Journal

ISSN: 1743-422X