Table 3 Avian influenza A outbreaks reported in humans
From: Clinical review: Update of avian influenza A infections in humans
| Â | United Kingdom 1995 [51] | Hong Kong 1997 [54] | Hong Kong 1999 [52] | The Netherlands 2003 [53] | Canada 2004 [58] | Worldwide (Southeast Asia, Africa, Middle East) 2003 to present [57,65,66,68] |
|---|---|---|---|---|---|---|
Influenza A subtype | H7N7 | H5N1 | H9N2 | H7N7 | H7N3 | H5N1 |
Source of infection | Poultry | Poultry and waterfowl | Poultry | Poultry | Poultry | Poultry and waterfowl |
Clinical presentation | Conjunctivitis | Conjunctivitis and ILI | ILI | Conjunctivitis, pneumonia, ILI | Conjunctivitis, ILI | Conjunctivitis, ILI, pneumonia, multi-organ failure |
Number of human cases | 1 | 18 | 2 | 89 | 2 | 256 |
Number of fatalities (percent) | 0 (0) | 6 (33) | 0 (0) | 1 (1) | 0 (0) | 151 (59) |