Emergence of Enteric Viruses in Production Chickens Is a Concern for Avian Health
Table 2
Distribution of the seven viruses in the 280 samples of intestinal contents from the chickens with and without clinical signs of enteric diseases from 2007 to 2010.
Virus
With clinical signs %
Without clinical signs %
Total (%)
IBV
39 (13.9)
6 (2.1)
45 (16.1)
ANV
18 (6.4)
4 (1.4)
22 (7.9)
CAstV
10 (3.6)
4 (1.4)
14 (5.0)
Parvovirus
5 (1.8)
0 (0.0)
5 (1.8)
Adenovirus
12 (4.3)
2 (0.7)
14 (5.0)
Rotavirus
6 (2.1)
4 (1.4)
10 (3.6)
Reovirus
1 (0.4)
0 (0.0)
1 (0.4)
Total one virus
91 (32.5)
20 (7.1)
111 (39.6)
Concomitance†
Two viruses
60 (21.4)
14 (5.0)
74 (26.4)
Three viruses
25 (8.9)
6 (2.1)
31 (11.1)
Four viruses
7 (2.5)
2 (0.7)
9 (3.2)
Five viruses
0 (0.0)
1 (0.4)
1 (0.4)
Total concomitance viruses
92 (32.9)
23 (8.2)
115 (41.1)
Total of positives
183 (65.4%)
43 (15.4%)
226 (80.7)
Negative
29 (10.4)
25 (8.9)
54 (19.3)
Total
212 (75.7)
68 (24.3)
280 (100)
IBV: infectious bronchitis virus; ANV: avian nephritis virus; CAstV: chicken astrovirus; †two or more viruses detected simultaneously in the same sample.
