Changing Patterns of H6 Influenza Viruses in Hong Kong Poultry Markets
Table 6
Experimental transmission of recent H6N1 viruses from quail to chicken and from chicken to chicken.
Virus
No. of positive trachea/total no. of birds [ for each bird]
Quails to chickens
Chickens to chickens
Inoculated
Direct contact
Inoculated
Direct contact
Qa/HK/CSW106/01
3/3(2.7, 2.0, 2.5)
0/3
3/3(3.0, 2.0, 2.3)
0/3
Ck/HK/SF4/01
3/3(2.0, 1.5, 2.7)
0/3
3/3(2.0, 1.5, 2.0)
0/3
Qa/HK/YU404/02
3/3(2.5, 2.5, 2.0)
0/3
3/3(1.0, 2.3, 2.5)
0/3
Ph/HK/SSP44/02
3/3(3.0, 2.7, 2.0)
0/3
3/3(2.3, 2.0, 2.7)
0/3
Ch/HK/CSW595/03
3/3(2.3, 2.0, 2.7)
0/3
3/3(2.3, 1.5, 2.5)
0/3
Titers in parentheses correspond to each bird in the group 3 days after inoculation. Tracheal swabs were collected and titrated 5 days and 7 days after being put with inoculated group.