Table 2 Expression of AIV antigen in cell types of different organs of the respiratory and gastro-intestinal tracts
Species | No of birds | Number of birds expressing influenza virus antigen in a cell type of an organ | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Respiratory tract | Gastro-intestinal tract | |||||||||||||||
Lung | Air sac | Proventriculus | Small intestine | Large intestine | ||||||||||||
EP | E | N | EP | E | N | EP | E | N | EP | E | N | EP | E | N | ||
Tufted duck Aythya fuligula | 7 | 1 | 4 | 0 | 0 | 1 | 0 | 1∞ | 2 | 2 | 1∞ | 4 | 1 | 0 | 4 | 0 |
Common pochard Aythya farina | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 |
Great crested grebe Podiceps cristatus | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Eurasian teal Anas crecca | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Eurasian wigeon Mareca Penelope | 10 | 5 | 6 | 1 | 2 | 5 | 0 | 2∞ | 7 | 0 | 3∞* | 8 | 1 | 1* | 8 | 0 |
Mallard Anas platyrhynchos | 2 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 1 | 0 | 1 | 1 | 1 | 0 | 1 | 0 |
Duck (unspecified species) | 10 | 8 | 0 | 0 | 8 | 0 | 0 | 0 | 3 | 0 | 0 | 2 | 1 | 0 | 3 | 1 |
Greylag goose Anser anser | 1 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Great black backed gull Larus marinus | 1 | 0 | 1 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 0 |
Lesser black backed gull Larus fuscus | 1 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Black-headed gull Chroicocephalus ridibundus | 1 | 0 | 1 | 0 | 1 | 0 | 0 | 1 | 1 | 0 | 0 | 1 | 1 | 0 | 1 | 1 |
Eurasian buzzard Buteo buteo | 2 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Eurasian magpie Pica pica | 1 | 1 | 0 | 0 | 1 | 0 | 0 | 1 | 0 | 0 | 1 | 0 | 0 | 1 | 0 | 0 |
Total | 39 | 16 | 13 | 1 | 15 | 8 | 0 | 6 | 14 | 2 | 6 | 17 | 6 | 2 | 18 | 2 |