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Table 1 Exposure characteristic of 46 confirmed cases from Zhejiang Province

From: Epidemiology of the avian influenza A (H7N9) outbreak in Zhejiang Province, China

Characteristic Confirmed cases (n = 46)
No exposure (%) 8/38 (21.05)
Poultry exposure history (%) 30/38 (78.95)
Chickens (%) 23/30(76.67)
Ducks (%) 6/30 (20.00)
Pigeons (%) 3/30 (10.00)
Bird (%) 1/30 (3.33)
Exposure frequency  
Every day before onset (%) 11(36.67)
<3 days before onset (%) 6 (20.00)
3-7 days before onset (%) 9 (30.00)
>7 days before onset (%) 4 (13.33)
Exposure ways  
Buying poultry (%) 13 (43.33)
Visiting poultry market (%) 6 (20.00)
Breeding poultry (%) 10 (33.33)
Killing and cleaning poultry (%) 5 (16.67)