Skip directly to search Skip directly to A to Z list Skip directly to page options Skip directly to site content

Volume 13, Number 12—December 2007

Research

Susceptibility of Canada Geese (Branta canadensis) to Highly Pathogenic Avian Influenza Virus (H5N1)

John Pasick*Comments to Author , Yohannes Berhane*, Carissa Embury-Hyatt*, John Copps*, Helen Kehler*, Katherine Handel*, Shawn Babiuk*, Kathleen Hooper-McGrevy*, Yan Li†, Quynh Mai Le‡, and Song Lien Phuong§
Author affiliations: *Canadian Food Inspection Agency, Winnipeg, Manitoba, Canada; †Public Health Agency of Canada, Winnipeg, Manitoba, Canada; ‡National Institute of Hygiene and Epidemiology, Hanoi, Vietnam; §National Center for Veterinary Diagnosis, Hanoi, Vietnam;

Main Article

Table 1

NP and H5 antibody levels in juvenile and adult Canada geese*

Animal ID 0 dpi cELISA 
(NP % inhibition) 0 dpi H5 HI assay† 14 dpi (H5N2) cELISA (NP % inhibition) 21 dpi (H5N2)
H5 HI assay† 20–21 dpi (H5N1)
cELISA (NP) 20–21 dpi (H5N1)
H5 HI assay†
Juveniles
852S/27R Neg (20) <8 Pos (66) 16 Euthanized or died‡
853S/28R Neg (13) <8 Pos (64) 64 Pos (46% inhibition) 8
856S/31R Neg (21) <8 Pos (57) 256 Euthanized
858S/33R Neg (22) <8 Pos (55) 128 Pos (48% inhibition) 64
859S/34R Neg (19) <8 Pos (49) 256 Euthanized
851S/26R Neg (24) <8 Euthanized
854S/29R Neg (23) <8 Euthanized
855S/30R Neg (22) <8 Euthanized
860S/35R Neg (24) <8 Euthanized
861S/36R Neg (20) <8
857S/32Y Neg (18) <8
Adults
842S/42Y Pos (93) <8 Pos (99) 512 Euthanized
844S/44Y Neg (23) <8 Pos (99) 64 Pos (46% inhibition) <8
845S/45Y Pos (58) <8 Pos (96) 8 Euthanized
846S/46Y Pos (76) <8 Pos (96) <8 Pos (63% inhibition) <8
847S/47Y Pos (74) <8 Pos (99) ND Euthanized
840S/40Y Pos (45) <8 Pos (99% inhibition) >4,096
841S/41Y Neg (22) <8 Euthanized
843S/43Y Pos (78) <8 Euthanized
848S/48Y Pos (39) <8 Pos (98% inhibition) 64
849S/49Y Pos (93) <8 Pos (98% inhibition) 32
850S/50Y Pos (85) <8

*NP, nucleoprotein; cELISA, competitive ELISA; dpi, days postinfection; Neg, negative (<30% inhibition); Pos, positive (≥30% inhibition); HI, hemagglutinin inhibition; ND, not determined.
4 hemagglutinin units of A/duck/British Columbia/26–6/2005 (H5N2) used in assay.
‡Euthanized or died before day 20–21 postinoculation with virus (H5N1).

Main Article

TOP